Remove lisp/erc/ file-local indent-tabs-mode settings

* lisp/erc/erc-autoaway.el:
* lisp/erc/erc-backend.el:
* lisp/erc/erc-button.el:
* lisp/erc/erc-compat.el:
* lisp/erc/erc-dcc.el:
* lisp/erc/erc-fill.el:
* lisp/erc/erc-ibuffer.el:
* lisp/erc/erc-identd.el:
* lisp/erc/erc-imenu.el:
* lisp/erc/erc-join.el:
* lisp/erc/erc-list.el:
* lisp/erc/erc-log.el:
* lisp/erc/erc-match.el:
* lisp/erc/erc-menu.el:
* lisp/erc/erc-netsplit.el:
* lisp/erc/erc-networks.el:
* lisp/erc/erc-notify.el:
* lisp/erc/erc-page.el:
* lisp/erc/erc-pcomplete.el:
* lisp/erc/erc-replace.el:
* lisp/erc/erc-ring.el:
* lisp/erc/erc-services.el:
* lisp/erc/erc-sound.el:
* lisp/erc/erc-speedbar.el:
* lisp/erc/erc-stamp.el:
* lisp/erc/erc-track.el:
* lisp/erc/erc-truncate.el:
* lisp/erc/erc-xdcc.el:
* lisp/erc/erc.el: Remove indent-tabs-mode setting, so that we follow
Emacs' global indent-tabs-mode=nil setting (and much of the
indentation in these fails is already spaces anyway).  Also remove
tab-width=8 settings, since those are redundant with the setting in
the top-level .dir-locals.el.

Fix some commentary typos in exif.el

* lisp/image/exif.el (exif--parse-exif-chunk)
(exif--parse-directory): Commentary typo fixes.

Add an Exif parsing library

* lisp/image/exif.el: New file (bug#23070).

* test/lisp/image/exif-tests.el: Add some basic tests.

CC Mode: Fix wrong fontification of FOO in ASSERT (FOO && !BAR)

* lisp/progmodes/cc-engine.el (c-forward-decl-or-cast-1): Don't recognize the
construct in CASE 18, unless additionally at-decl-end is set.

Fix two ` characters in NEWS

Hide passwords in .authinfo and .netrc files

* lisp/auth-source.el (authinfo-mode): New mode (bug#28785).
(authinfo--hide-passwords, authinfo--toggle-display): New functions.

* lisp/files.el (auto-mode-alist): Use authinfo-mode for .authinfo
and .netrc files.

Allow reveal.el to toggle `display' properties

* lisp/reveal.el (reveal-open-new-overlays): Allow also toggling
`displa' overlay properties (bug#28785).

; * etc/TODO: Update.

Mention image caching in the `image-size' doc string

* src/image.c (Fimage_size): Mention that this function caches
images, and what to do about that (bug#33275).

Mention how to listen to all interfaces in make-network-process

* src/process.c (Fmake_network_process): Mention how to listen to
all interfaces (bug#34617).

* lisp/net/tramp.el (tramp-handle-file-modes): Check for nil file-attributes.

* lisp/completion.el (completion-kill-region): Doc fix.

Fix to a81223aeaa

* lisp/gnus/gnus-registry.el (gnus-registry-article-marks-to-chars):
  (gnus-registry-article-marks-to-names): The registry is an object,
  not a hash table.

Allow the user to specify Content-type in Message mode

* lisp/gnus/message.el (message-encode-message-body): Pass in the
content type if the user has given one.

* lisp/gnus/mml.el (mml-parse-1): Remove bogus peek at
Content-type (there are no headers here)  (bug#36527).

* lisp/gnus/mml.el (mml-generate-mime): Respect that.

Move describe-face to the new help-fns machinery

* lisp/help-fns.el (describe-face): Move to here from faces.el and
split up (bug#36670).
(help-fns--face-custom-version-info):
(help-fns--face-attributes): Factored out into own functions.
(help-fns-describe-face-functions): New variable.

* lisp/emacs-lisp/subr-x.el (when-let): Add autoload cookie.

lisp/*.el: Fix typos and other trivial doc fixes

* lisp/allout-widgets.el (allout-widgets-auto-activation)
(allout-current-decorated-p):
* lisp/auth-source.el (auth-source-protocols):
* lisp/autorevert.el (auto-revert-set-timer):
* lisp/battery.el (battery-mode-line-limit):
* lisp/calc/calcalg3.el (math-map-binop):
* lisp/calendar/cal-dst.el (calendar-dst-find-startend):
* lisp/calendar/cal-mayan.el (calendar-mayan-long-count-to-absolute):
* lisp/calendar/calendar.el (calendar-date-echo-text)
(calendar-generate-month, calendar-string-spread)
(calendar-cursor-to-date, calendar-read, calendar-read-date)
(calendar-mark-visible-date, calendar-dayname-on-or-before):
* lisp/calendar/diary-lib.el (diary-ordinal-suffix):
* lisp/cedet/ede/autoconf-edit.el (autoconf-new-program)
(autoconf-find-last-macro, autoconf-parameter-strip):
* lisp/cedet/ede/config.el (ede-target-with-config-build):
* lisp/cedet/ede/linux.el (ede-linux--detect-architecture)
(ede-linux--get-architecture):
* lisp/cedet/semantic/complete.el (semantic-collector-calculate-cache)
(semantic-displayer-abstract, semantic-displayer-point-position):
* lisp/cedet/semantic/format.el (semantic-format-face-alist)
(semantic-format-tag-short-doc):
* lisp/cedet/semantic/fw.el (semantic-find-file-noselect):
* lisp/cedet/semantic/idle.el (semantic-idle-scheduler-work-idle-time)
(semantic-idle-breadcrumbs-display-function)
(semantic-idle-breadcrumbs-format-tag-list-function):
* lisp/cedet/semantic/lex.el (semantic-lex-map-types)
(define-lex, define-lex-block-type-analyzer):
* lisp/cedet/semantic/senator.el (senator-search-default-tag-filter):
* lisp/cedet/semantic/symref.el (semantic-symref-result)
(semantic-symref-hit-to-tag-via-db):
* lisp/cedet/semantic/symref.el (semantic-symref-tool-baseclass):
* lisp/cedet/semantic/tag.el (semantic-tag-new-variable)
(semantic-tag-new-include, semantic-tag-new-package)
(semantic-tag-set-faux, semantic-create-tag-proxy)
(semantic-tag-function-parent)
(semantic-tag-components-with-overlays):
* lisp/cedet/srecode/cpp.el (srecode-cpp-namespaces)
(srecode-semantic-handle-:c, srecode-semantic-apply-tag-to-dict):
* lisp/cedet/srecode/dictionary.el (srecode-create-dictionary)
(srecode-dictionary-add-entries, srecode-dictionary-lookup-name)
(srecode-create-dictionaries-from-tags):
* lisp/cmuscheme.el (scheme-compile-region):
* lisp/color.el (color-lab-to-lch):
* lisp/doc-view.el (doc-view-image-width)
(doc-view-set-up-single-converter):
* lisp/dynamic-setting.el (font-setting-change-default-font)
(dynamic-setting-handle-config-changed-event):
* lisp/elec-pair.el (electric-pair-text-pairs)
(electric-pair-skip-whitespace-function)
(electric-pair-string-bound-function):
* lisp/emacs-lisp/avl-tree.el (avl-tree--del-balance)
(avl-tree-member, avl-tree-mapcar, avl-tree-iter):
* lisp/emacs-lisp/bytecomp.el (byte-compile-generate-call-tree):
* lisp/emacs-lisp/checkdoc.el (checkdoc-autofix-flag)
(checkdoc-spellcheck-documentation-flag, checkdoc-ispell)
(checkdoc-ispell-current-buffer, checkdoc-ispell-interactive)
(checkdoc-ispell-message-interactive)
(checkdoc-ispell-message-text, checkdoc-ispell-start)
(checkdoc-ispell-continue, checkdoc-ispell-comments)
(checkdoc-ispell-defun):
* lisp/emacs-lisp/cl-generic.el (cl--generic-search-method):
* lisp/emacs-lisp/eieio-custom.el (eieio-read-customization-group):
* lisp/emacs-lisp/lisp.el (forward-sexp, up-list):
* lisp/emacs-lisp/package-x.el (package--archive-contents-from-file):
* lisp/emacs-lisp/package.el (package-desc)
(package--make-autoloads-and-stuff, package-hidden-regexps):
* lisp/emacs-lisp/tcover-ses.el (ses-exercise-startup):
* lisp/emacs-lisp/testcover.el (testcover-nohits)
(testcover-1value):
* lisp/epg.el (epg-receive-keys, epg-start-edit-key):
* lisp/erc/erc-backend.el (erc-server-processing-p)
(erc-split-line-length, erc-server-coding-system)
(erc-server-send, erc-message):
* lisp/erc/erc-button.el (erc-button-face, erc-button-alist)
(erc-browse-emacswiki):
* lisp/erc/erc-ezbounce.el (erc-ezbounce, erc-ezb-get-login):
* lisp/erc/erc-fill.el (erc-fill-variable-maximum-indentation):
* lisp/erc/erc-log.el (erc-current-logfile):
* lisp/erc/erc-match.el (erc-log-match-format)
(erc-text-matched-hook):
* lisp/erc/erc-netsplit.el (erc-netsplit, erc-netsplit-debug):
* lisp/erc/erc-networks.el (erc-server-alist)
(erc-networks-alist, erc-current-network):
* lisp/erc/erc-ring.el (erc-input-ring-index):
* lisp/erc/erc-speedbar.el (erc-speedbar)
(erc-speedbar-update-channel):
* lisp/erc/erc-stamp.el (erc-timestamp-only-if-changed-flag):
* lisp/erc/erc-track.el (erc-track-position-in-mode-line)
(erc-track-remove-from-mode-line, erc-modified-channels-update)
(erc-track-last-non-erc-buffer, erc-track-sort-by-importance)
(erc-track-get-active-buffer):
* lisp/erc/erc.el (erc-get-channel-user-list)
(erc-echo-notice-hook, erc-echo-notice-always-hook)
(erc-wash-quit-reason, erc-format-@nick):
* lisp/ffap.el (ffap-latex-mode):
* lisp/files.el (abort-if-file-too-large)
(dir-locals--get-sort-score, buffer-stale--default-function):
* lisp/filesets.el (filesets-tree-max-level, filesets-data)
(filesets-update-pre010505):
* lisp/gnus/gnus-agent.el (gnus-agent-flush-cache):
* lisp/gnus/gnus-art.el (gnus-article-encrypt-protocol)
(gnus-button-prefer-mid-or-mail):
* lisp/gnus/gnus-cus.el (gnus-group-parameters):
* lisp/gnus/gnus-demon.el (gnus-demon-handlers)
(gnus-demon-run-callback):
* lisp/gnus/gnus-dired.el (gnus-dired-print):
* lisp/gnus/gnus-icalendar.el (gnus-icalendar-event-from-buffer):
* lisp/gnus/gnus-range.el (gnus-range-normalize):
* lisp/gnus/gnus-spec.el (gnus-pad-form):
* lisp/gnus/gnus-srvr.el (gnus-server-agent, gnus-server-cloud)
(gnus-server-opened, gnus-server-closed, gnus-server-denied)
(gnus-server-offline):
* lisp/gnus/gnus-sum.el (gnus-refer-thread-use-nnir)
(gnus-refer-thread-limit-to-thread)
(gnus-summary-limit-include-thread, gnus-summary-refer-thread)
(gnus-summary-find-matching):
* lisp/gnus/gnus-util.el (gnus-rescale-image):
* lisp/gnus/gnus.el (gnus-summary-line-format, gnus-no-server):
* lisp/gnus/mail-source.el (mail-source-incoming-file-prefix):
* lisp/gnus/message.el (message-cite-reply-position)
(message-cite-style-outlook, message-cite-style-thunderbird)
(message-cite-style-gmail, message--send-mail-maybe-partially):
* lisp/gnus/mm-extern.el (mm-inline-external-body):
* lisp/gnus/mm-partial.el (mm-inline-partial):
* lisp/gnus/mml-sec.el (mml-secure-message-sign)
(mml-secure-message-sign-encrypt, mml-secure-message-encrypt):
* lisp/gnus/mml2015.el (mml2015-epg-key-image)
(mml2015-epg-key-image-to-string):
* lisp/gnus/nndiary.el (nndiary-reminders, nndiary-get-new-mail):
* lisp/gnus/nnheader.el (nnheader-directory-files-is-safe):
* lisp/gnus/nnir.el (nnir-search-history)
(nnir-imap-search-other, nnir-artlist-length)
(nnir-artlist-article, nnir-artitem-group, nnir-artitem-number)
(nnir-artitem-rsv, nnir-article-group, nnir-article-number)
(nnir-article-rsv, nnir-article-ids, nnir-categorize)
(nnir-retrieve-headers-override-function)
(nnir-imap-default-search-key, nnir-hyrex-additional-switches)
(gnus-group-make-nnir-group, nnir-run-namazu, nnir-read-parms)
(nnir-read-parm, nnir-read-server-parm, nnir-search-thread):
* lisp/gnus/nnmairix.el (nnmairix-default-group)
(nnmairix-propagate-marks):
* lisp/gnus/smime.el (smime-keys, smime-crl-check)
(smime-verify-buffer, smime-noverify-buffer):
* lisp/gnus/spam-report.el (spam-report-url-ping-mm-url):
* lisp/gnus/spam.el (spam-spamassassin-positive-spam-flag-header)
(spam-spamassassin-spam-status-header, spam-sa-learn-rebuild)
(spam-classifications, spam-check-stat, spam-spamassassin-score):
* lisp/help.el (describe-minor-mode-from-symbol):
* lisp/hippie-exp.el (hippie-expand-ignore-buffers):
* lisp/htmlfontify.el (hfy-optimizations, hfy-face-resolve-face)
(hfy-begin-span):
* lisp/ibuf-ext.el (ibuffer-update-saved-filters-format)
(ibuffer-saved-filters, ibuffer-old-saved-filters-warning)
(ibuffer-filtering-qualifiers, ibuffer-repair-saved-filters)
(eval, ibuffer-unary-operand, file-extension, directory):
* lisp/image-dired.el (image-dired-cmd-pngcrush-options):
* lisp/image-mode.el (image-toggle-display):
* lisp/international/ccl.el (ccl-compile-read-multibyte-character)
(ccl-compile-write-multibyte-character):
* lisp/international/kkc.el (kkc-save-init-file):
* lisp/international/latin1-disp.el (latin1-display):
* lisp/international/ogonek.el (ogonek-name-encoding-alist)
(ogonek-information, ogonek-lookup-encoding)
(ogonek-deprefixify-region):
* lisp/isearch.el (isearch-filter-predicate)
(isearch--momentary-message):
* lisp/jsonrpc.el (jsonrpc-connection-send)
(jsonrpc-process-connection, jsonrpc-shutdown)
(jsonrpc--async-request-1):
* lisp/language/tibet-util.el (tibetan-char-p):
* lisp/mail/feedmail.el (feedmail-queue-use-send-time-for-date)
(feedmail-last-chance-hook, feedmail-before-fcc-hook)
(feedmail-send-it-immediately-wrapper, feedmail-find-eoh):
* lisp/mail/hashcash.el (hashcash-generate-payment)
(hashcash-generate-payment-async, hashcash-insert-payment)
(hashcash-verify-payment):
* lisp/mail/rmail.el (rmail-movemail-variant-in-use)
(rmail-get-attr-value):
* lisp/mail/rmailmm.el (rmail-mime-prefer-html, rmail-mime):
* lisp/mail/rmailsum.el (rmail-summary-show-message):
* lisp/mail/supercite.el (sc-raw-mode-toggle):
* lisp/man.el (Man-start-calling):
* lisp/mh-e/mh-acros.el (mh-do-at-event-location)
(mh-iterate-on-messages-in-region, mh-iterate-on-range):
* lisp/mh-e/mh-alias.el (mh-alias-system-aliases)
(mh-alias-reload, mh-alias-ali)
(mh-alias-canonicalize-suggestion, mh-alias-add-alias-to-file)
(mh-alias-add-alias):
* lisp/mouse.el (mouse-save-then-kill):
* lisp/net/browse-url.el (browse-url-default-macosx-browser):
* lisp/net/eudc.el (eudc-set, eudc-variable-protocol-value)
(eudc-variable-server-value, eudc-update-variable)
(eudc-expand-inline):
* lisp/net/eudcb-bbdb.el (eudc-bbdb-format-record-as-result):
* lisp/net/eudcb-ldap.el (eudc-ldap-get-field-list):
* lisp/net/pop3.el (pop3-list):
* lisp/net/soap-client.el (soap-namespace-put)
(soap-xs-parse-sequence, soap-parse-envelope):
* lisp/net/soap-inspect.el (soap-inspect-xs-complex-type):
* lisp/nxml/rng-xsd.el (rng-xsd-date-to-days):
* lisp/org/ob-C.el (org-babel-prep-session:C)
(org-babel-load-session:C):
* lisp/org/ob-J.el (org-babel-execute:J):
* lisp/org/ob-asymptote.el (org-babel-prep-session:asymptote):
* lisp/org/ob-awk.el (org-babel-execute:awk):
* lisp/org/ob-core.el (org-babel-process-file-name):
* lisp/org/ob-ebnf.el (org-babel-execute:ebnf):
* lisp/org/ob-forth.el (org-babel-execute:forth):
* lisp/org/ob-fortran.el (org-babel-execute:fortran)
(org-babel-prep-session:fortran, org-babel-load-session:fortran):
* lisp/org/ob-groovy.el (org-babel-execute:groovy):
* lisp/org/ob-io.el (org-babel-execute:io):
* lisp/org/ob-js.el (org-babel-execute:js):
* lisp/org/ob-lilypond.el (org-babel-default-header-args:lilypond)
(org-babel-lilypond-compile-post-tangle)
(org-babel-lilypond-display-pdf-post-tangle)
(org-babel-lilypond-tangle)
(org-babel-lilypond-execute-tangled-ly)
(org-babel-lilypond-compile-lilyfile)
(org-babel-lilypond-check-for-compile-error)
(org-babel-lilypond-process-compile-error)
(org-babel-lilypond-mark-error-line)
(org-babel-lilypond-parse-error-line)
(org-babel-lilypond-attempt-to-open-pdf)
(org-babel-lilypond-attempt-to-play-midi)
(org-babel-lilypond-switch-extension)
(org-babel-lilypond-set-header-args):
* lisp/org/ob-lua.el (org-babel-prep-session:lua):
* lisp/org/ob-picolisp.el (org-babel-execute:picolisp):
* lisp/org/ob-processing.el (org-babel-prep-session:processing):
* lisp/org/ob-python.el (org-babel-prep-session:python):
* lisp/org/ob-scheme.el (org-babel-scheme-capture-current-message)
(org-babel-scheme-execute-with-geiser, org-babel-execute:scheme):
* lisp/org/ob-shen.el (org-babel-execute:shen):
* lisp/org/org-agenda.el (org-agenda-entry-types)
(org-agenda-move-date-from-past-immediately-to-today)
(org-agenda-time-grid, org-agenda-sorting-strategy)
(org-agenda-filter-by-category, org-agenda-forward-block):
* lisp/org/org-colview.el (org-columns--overlay-text):
* lisp/org/org-faces.el (org-verbatim, org-cycle-level-faces):
* lisp/org/org-indent.el (org-indent-set-line-properties):
* lisp/org/org-macs.el (org-get-limited-outline-regexp):
* lisp/org/org-mobile.el (org-mobile-files):
* lisp/org/org.el (org-use-fast-todo-selection)
(org-extend-today-until, org-use-property-inheritance)
(org-refresh-effort-properties, org-open-at-point-global)
(org-track-ordered-property-with-tag, org-shiftright):
* lisp/org/ox-html.el (org-html-checkbox-type):
* lisp/org/ox-man.el (org-man-source-highlight)
(org-man-verse-block):
* lisp/org/ox-publish.el (org-publish-sitemap-default):
* lisp/outline.el (outline-head-from-level):
* lisp/progmodes/dcl-mode.el (dcl-back-to-indentation-1)
(dcl-calc-command-indent, dcl-indent-to):
* lisp/progmodes/flymake.el (flymake-make-diagnostic)
(flymake--overlays, flymake-diagnostic-functions)
(flymake-diagnostic-types-alist, flymake--backend-state)
(flymake-is-running, flymake--collect, flymake-mode):
* lisp/progmodes/gdb-mi.el (gdb-threads-list, gdb, gdb-non-stop)
(gdb-buffers, gdb-gud-context-call, gdb-jsonify-buffer):
* lisp/progmodes/grep.el (grep-error-screen-columns):
* lisp/progmodes/gud.el (gud-prev-expr):
* lisp/progmodes/ps-mode.el (ps-mode, ps-mode-target-column)
(ps-run-goto-error):
* lisp/progmodes/python.el (python-eldoc-get-doc)
(python-eldoc-function-timeout-permanent, python-eldoc-function):
* lisp/shadowfile.el (shadow-make-group):
* lisp/speedbar.el (speedbar-obj-do-check):
* lisp/textmodes/flyspell.el (flyspell-auto-correct-previous-hook):
* lisp/textmodes/reftex-cite.el (reftex-bib-or-thebib):
* lisp/textmodes/reftex-index.el (reftex-index-goto-entry)
(reftex-index-kill, reftex-index-undo):
* lisp/textmodes/reftex-parse.el (reftex-context-substring):
* lisp/textmodes/reftex.el (reftex-TeX-master-file):
* lisp/textmodes/rst.el (rst-next-hdr, rst-toc)
(rst-uncomment-region, rst-font-lock-extend-region-internal):
* lisp/thumbs.el (thumbs-mode):
* lisp/vc/ediff-util.el (ediff-restore-diff):
* lisp/vc/pcvs-defs.el (cvs-cvsroot, cvs-force-dir-tag):
* lisp/vc/vc-hg.el (vc-hg--ignore-patterns-valid-p):
* lisp/wid-edit.el (widget-field-value-set, string):
* lisp/x-dnd.el (x-dnd-version-from-flags)
(x-dnd-more-than-3-from-flags): Assorted docfixes.

Make register-preview ignore empty registers

* lisp/register.el (register-preview): Ignore elements that are
empty (bug#37155).

Make the reverse tabulated list sort stable

* lisp/emacs-lisp/tabulated-list.el (tabulated-list--get-sorter):
Make the reverse sorting stable (bug#37174).

Copyright-paperwork-exempt: yes

Further touch-ups to the auth-source obfuscation

* lisp/auth-source.el (auth-source--obfuscate): Avoid leaking the
length of the password by using PKCS#7 padding.

Add some comments to the auth-source obfuscation

* lisp/auth-source.el (auth-source--obfuscate): Add comments.

Make previous auth-source change not break on Windows without gnutls

* lisp/auth-source.el (auth-source--obfuscate)
(auth-source--deobfuscate): Check that gnutls is really available.

Obfuscate auth-source memory contents even more

* lisp/auth-source.el (auth-source--deobfuscate): Use more
obfuscated obfuscation (bug#37196).
(auth-source--pad, auth-source--obfuscate)
(auth-source-netrc-normalize): Use it.
(auth-source-netrc-parse): Ditto.

Obfuscate auth-source secrets more

* lisp/auth-source.el (auth-source-netrc-normalize): Obfuscate
passwords stored in the lexical closure (bug#37196).

Recommend against SHA-1 and MD5 for security

* doc/lispref/text.texi (Checksum/Hash):
* src/fns.c (Fmd5, Fsecure_hash):
* lisp/subr.el (sha1): Doc fix to recommend against SHA-1 and MD5 for
security-related applications, since they are not collision
resistant.  (Bug#37420)

Allow `process-contact' not to block

* doc/lispref/processes.texi (Process Information): Document it.

* lisp/simple.el (list-processes--refresh): Don't wait for contact
information for non-setup processes.

* src/process.c (Fprocess_contact): Take an optional parameter to
avoid blocking (bug#37408).

Make number-at-point recognize some hex numbers

* lisp/thingatpt.el (number-at-point): Also return common hex
numbers (bug#37458).

Change default value of message-make-forward-subject-function

* lisp/gnus/message.el (message-make-forward-subject-function): Change
default value to be a list so it's easier for users to add
functions. Change the type so the customize interface allows selecting
multiple provided functions instead of just one (bug#37470).

Recommend using https for package-archives

* lisp/emacs-lisp/package.el (package-archives): Recommend using https
sources where possible.  (Bug#33825)

; Improve wording of last Tramp commit, suggested by Robert Pluim

Fix the previous imenu commit

* lisp/imenu.el (imenu--make-index-alist): Always return the alist
(bug#30449).

Copyright-paperwork-exempt: yes

Some Tramp methods allow to change the remote login shell

* doc/misc/tramp.texi (Inline methods) <sshx, plink, plinkx>:
(External methods) <scpx, pscp, psftp>: Mention, that the remote
login shell could be changed.
(Remote shell setup): Remove description of properties
"remote-shell-login" and "remote-shell-args", they don't matter
here.  Changing the default remote shell works only for some
methods.
(Frequently Asked Questions): Refer to alternative approach fixing
zsh problems.

* etc/NEWS: Some Tramp methods allow to change the remote login shell.

* lisp/net/tramp-sh.el (tramp-default-remote-shell): New defconst.
(tramp-methods): Use it.
(tramp-get-sh-extra-args): New defun.
(tramp-open-shell, tramp-maybe-open-connection): Use it.

* lisp/net/tramp.el (tramp-methods): Adapt docstring.

* lisp/window.el (walk-windows): Simplify to use WINDOW arg of window-list-1

instead of calling select-window (bug#35385).

Only use Gnus registry for formatting when registry is loaded

See bug #36903

* lisp/gnus/gnus-registry.el (gnus-registry-article-marks-to-chars):
  (gnus-registry-article-marks-to-names): In some circumstances it's
  possible for the user's summary line format spec to include
  registry-specific code, while the registry itself isn't actually
  loaded. Make sure the database is actually a hashtable before
  accessing it.

Fix calls to insert-*-hooks when JIT font lock is active

* src/insdel.c (signal_after_change): Save and restore
interval_insert_behind_hooks and
interval_insert_in_front_hooks across calls to various other
hooks, to prevent their clobbering by those other hooks.
(Bug#37455)

Minor svg wrap tweak

* lisp/net/shr.el (svg--wrap-svg): Add the size to the wrapper to
avoid having the SVG images shrink (bug#37159).

Further fix-ups for SVG wrapping in shr

* lisp/net/shr.el (svg--wrap-svg): Add the size to the wrapper to
avoid having the SVG images shrink (bug#37159).

Fix :version in recent commit

* lisp/pcmpl-gnu.el (pcmpl-gnu-makefile-includes): Fix :version.

Fix a bug in callback functions in align-areas

* lisp/align.el (align-areas): When given a callback function and
JUSTIFY, pick out the correct parameters (bug#30139).  Suggested
by "John Wiegley" <johnw@gnu.org>.

Also prefer .emacs.d if .emacs exists

Problem reported by Katsumi Yamaoka (Bug#37456).
* lisp/startup.el (startup--xdg-or-homedot): Also
prefer .emacs.d if a traditional .emacs file exists.

Default PICKY_ACCESS to false on non-MS

* src/fileio.c (PICKY_EACCES) [!DOS_NT]: Default to false.

Omit some overenthusiastic file-truename calls

Problem reported by Tino Calancha (Bug#37445).
* src/emacs.c (init_cmdargs): Call file-truename only if
needed, i.e., if invocation-directory ends in "/i386/" on
WINDOWSNT.
* src/lread.c (readevalloop): If the sourcename is not
absolute, make it absolute.  There is no need to convert
non-absolute files into truenames, since absolute files are
not converted into truenames.
(init_lread): Do not convert source-directory into a truename
at startup.  There is no need to do so in a dumped Emacs since
an absolute file name suffices.  The source directory might
not even exist any more, or might have been replaced by an
interloper who takes advantage of the truename calculation.
(syms_of_lread): Remove Qfile_truename; no longer needed.

Fix ignored Motif scrollbar resources (Bug#37359)

* src/xterm.c (x_create_toolkit_scroll_bar): On Motif
scrollbars, "foreground" has no meaning, while "background"
means the truck and arrow colors, and "trough" means the
background of the entire widget.  This fix hooks up the Emacs
scrollbar "foreground" color to the XmNbackground resource
and the "background" color to XmNtroughColor which is more in
line with how Xaw scrollbars behave.

Copyright-paperwork-exempt: yes

lisp/*.el, src/*.c: Fix typos in docstrings

* lisp/apropos.el (apropos-do-all):
* lisp/auth-source-pass.el (auth-source-pass--select-from-entries):
* lisp/auth-source.el (auth-source-user-or-password):
* lisp/calc/calc-forms.el (math-tzone-names):
* lisp/calendar/diary-lib.el (diary-face-attrs)
(diary-mark-entries-1):
* lisp/cedet/cedet-files.el (cedet-files-list-recursively):
* lisp/cedet/ede.el (ede-constructing, ede-deep-rescan):
* lisp/cedet/ede/cpp-root.el (ede-cpp-root-header-file-p):
* lisp/cedet/ede/proj.el (ede-proj-target-makefile):
* lisp/cedet/inversion.el (inversion-check-version)
(inversion-test):
* lisp/cedet/mode-local.el (mode-local-map-file-buffers):
* lisp/cedet/semantic/complete.el (semantic-displayer-ghost):
* lisp/cedet/semantic/db-find.el (semanticdb-find-translate-path-default):
* lisp/cedet/semantic/db.el (semanticdb-table)
(semanticdb-search-system-databases):
* lisp/cedet/semantic/imenu.el (semantic-imenu-index-directory):
* lisp/cedet/semantic/java.el (semantic-java-doc-keywords-map):
* lisp/cedet/semantic/lex-spp.el (semantic-lex-spp-use-headers-flag):
* lisp/cedet/semantic/lex.el (semantic-lex-make-keyword-table)
(semantic-lex-make-type-table, semantic-lex-debug-analyzers):
* lisp/cedet/semantic/tag-ls.el (semantic-tag-abstract-p)
(semantic-tag-leaf-p, semantic-tag-static-p)
(semantic-tag-prototype-p):
* lisp/dnd.el (dnd-open-remote-file-function, dnd-open-local-file):
* lisp/emacs-lisp/eieio-opt.el (eieio-build-class-alist)
(eieio-read-class, eieio-read-subclass):
* lisp/emacs-lisp/generator.el (cps--replace-variable-references)
(cps--handle-loop-for):
* lisp/erc/erc-dcc.el (erc-dcc-list, erc-dcc-member, erc-dcc-server)
(erc-dcc-auto-mask-p, erc-dcc-get-file, erc-dcc-chat-accept):
* lisp/eshell/em-pred.el (eshell-pred-file-type):
* lisp/faces.el (defined-colors-with-face-attributes):
* lisp/font-core.el (font-lock-mode):
* lisp/frame.el (frame-restack):
* lisp/net/shr.el (shr-image-animate):
* lisp/org/org-agenda.el (org-agenda-change-all-lines)
(org-agenda-today-p):
* lisp/org/org-id.el (org-id-get):
* lisp/org/org.el (org-highlight-latex-and-related)
(org--valid-property-p):
* lisp/org/ox-beamer.el (org-beamer--get-label):
* lisp/org/ox-latex.el (org-latex--caption-above-p):
* lisp/org/ox-odt.el (org-odt--copy-image-file)
(org-odt--copy-formula-file):
* lisp/org/ox.el (org-export-with-timestamps):
* lisp/progmodes/verilog-mode.el (verilog-indent-declaration-macros):
* lisp/ses.el (ses-file-format-extend-parameter-list):
* lisp/term.el (ansi-term):
* lisp/textmodes/bibtex.el (bibtex-no-opt-remove-re)
(bibtex-beginning-of-first-entry, bibtex-autokey-get-title)
(bibtex-read-key, bibtex-initialize):
* lisp/textmodes/flyspell.el (flyspell-word):
* lisp/view.el (view-mode-exit):
* src/composite.c:
* src/floatfns.c (Fisnan): Fix typos in docstrings.

Merge commit '107ce3050fc37b9a13d8304ae1bb73fac9de5f61'

Enhance 'pcomplete/make' to complete on targets in included makefiles

* lisp/pcmpl-gnu.el (pcmpl-gnu-makefile-includes): New.
(pcmpl-gnu-make-targets): New, factored out of pcmpl-gnu-make-all-targets.
(pcmpl-gnu-make-includes): New.
(pcmpl-gnu-make-all-targets): Use new functions.

* lisp/isearch.el (isearch-lazy-highlight-update): Remember timer object

in isearch-lazy-highlight-timer to cancel it in lazy-highlight-cleanup.

(isearch-done): No need to set isearch-lazy-highlight-start to nil -
it used to reset lazy-highlight loop like isearch-lazy-highlight-window-start,
but now other packages set isearch-lazy-highlight-last-string to nil to reset
lazy-highlight loop.

Fix loading .elc files on MS-Windows

* src/lread.c (Fload): Don't clobber 'found' if the .el file
was not found, as it is used by WINDOWSNT later on.

Improve logic for dependencies checking

* admin/nt/dist-build/build-dep-zips.py:

Fix up the previous mh-mime warning suppression

* lisp/mh-e/mh-acros.el (mh-dlet*): Suppress warnings about
prefix-less bindings.
* lisp/mh-e/mh-mime.el (mh-insert-mime-security-button): Remove
the warning removal here.
(mh-insert-mime-button): And here.

Improve support of the Tai-Viet script

* lisp/language/tai-viet.el ("TaiViet"): Update the doc
string.  Suggested by Jim Brase <jim_brase@sil.org>.
(Bug#5806)

* etc/HELLO: Add a Tai Viet entry.

Out-of-datedness .elc check is merely a file test

* src/fileio.c (file_test_errno): Now extern.
* src/lread.c (Fload): Use file_test_errno instead,
since this is really just a file test (the attributes
are not given to the user).

Merge branch 'master' of git.savannah.gnu.org:/srv/git/emacs

Fix the MS-Windows build broken by recent errno changes

* src/fileio.c (file_directory_p): If the file exists, but is
not a directory, set errno to ENOTDIR, like the Posix branch
does; openp expects that.

Simplify tramp-tests.el check for owncloud/nextcloud

* test/lisp/net/tramp-tests.el (tramp-test11-copy-file):
Simplify check for owncloud/nextcloud connections.

Add extra args for zsh in Tramp

* doc/misc/tramp.texi (Remote shell setup): New subsection
"Changing the default remote shell".

* lisp/net/tramp-sh.el (tramp-sh-extra-args): Add entry for zsh.

Be less picky about EACCES in file test predicates

Problem reported by Tino Calancha (Bug#37445) and others.
* src/fileio.c (PICKY_EACCES): New constant, false by default.
(file_test_errno): Ignore EACCES if not picky.
(check_file_access): Investigate EACCES problems further
if picky.

Fix permission-denied issue in MS-Windows startup

* src/callproc.c (init_callproc): Use file_access_p rather
than Ffile_exists_p during startup (Bug#37445).

Improve reporting of I/O, access errors

Signal an error for file-oriented errors that are not tame
errors like ENOENT and ENOTDIR (Bug#37389).
Do this for primitives exposed to Lisp; the lower
level internal C API merely makes errno values available
to higher-level C code.
* doc/lispref/files.texi (Testing Accessibility)
(File Attributes, Extended Attributes): Do not say that the
functions return nil when the return value cannot be determined.
* etc/NEWS: Mention the change.
* src/dired.c (Ffile_attributes): Fix doc string confusion
about opening a file vs getting its attributes.
(file_attributes): Signal serious errors.
* src/fileio.c (check_existing, check_executable)
(check_writable): Remove.  All callers changed to use
check_file_access or file_access_p.
(file_access_p, file_metadata_errno, file_attribute_errno)
(file_test_errno, check_file_access, check_emacs_readlinkat):
New functions.
* src/fileio.c (Ffile_executable_p, Ffile_readable_p)
(Ffile_name_case_insensitive_p, Frename_file, Ffile_exists_p):
(Ffile_symlink_p, Ffile_directory_p)
(Ffile_accessible_directory_p, Ffile_regular_p)
(Ffile_selinux_context, Ffile_acl, Ffile_modes)
(Ffile_newer_than_file_p, Fset_visited_file_modtime)
(Ffile_system_info):
* src/filelock.c (unlock_file, Ffile_locked_p):
* src/lread.c (Fload):
Signal serious errors.
* src/fileio.c (Ffile_writable_p): Remove unnecessary CHECK_STRING.
(emacs_readlinkat): Now static.
* src/filelock.c (current_lock_owner, lock_if_free): Return a
positive errno on error, and the negative of the old old value
on success.  All callers changed.
* src/lread.c (openp): Propagate serious errno values to caller.

Substituted deprecated WebKitGTK+ api.

* src/xwidget.c : Substituted WebKitGTK+ API calls and use
JavaScriptCore GLib API instead.

Fix an assignment to free variable warning

It fixes a bug introduced by commit
'query-replace-regexp undo: Update next-replacement after undo'
(30c4f35a6fc8a6507930923766c3126ac1c2063f)

See https://lists.gnu.org/archive/html/emacs-devel/2019-09/msg00364.html
* lisp/replace.el(perform-replace): Rename variable
to next-replacement-replaced.

* src/w32fns.c (Fw32_read_registry): Doc fix

Suppress some warnings about un-prefixed dynamic variables

* lisp/mh-e/mh-mime.el (mh-insert-mime-security-button): Suppress
warnings about un-prefixed dynamic variables.
(mh-insert-mime-button): Ditto.

Touch up naming of ipv6-expand

* lisp/net/net-utils.el (nslookup--ipv6-expand): Rename to avoid
make prefix more regular.
(nslookup-host-ipv6): Rename call.

Updated to match more recent versions of Praat.

* lisp/leim/quail/ipa-praat.el ("ipa-praat"): Update to match
more recent versions of Praat (bug#36198).

- \rh was used for ram's horns (a vowel) and rhoticity hook (a
  diacritic).  Praat uses \hr for the hook, so I made that changed.

- \e3v for the slightly rounded diacritic seems to have been a typo
  related to the use of e in the example.  Changed it to \3v to match
  Praat.

- Added examples to the table of tone diacritics

- Added \^h for superscript h

- Added \^H for superscript h with hook

- Added \^w for superscript w (labialization)

- Added \^j for superscript j (palatalization)

- Added \^g for superscript symbol (velarization)

- Added \^9 for superscript symbol (pharyngealization)

Update doc marker -- smtpmail-retries is documented

Improve font lookup on MS-Windows

* src/w32font.c (struct font_callback_data): New member
'known_fonts'.
(w32font_list_internal, w32font_match_internal): Set up
match_data.known_fonts if the font spec includes :script that
names one of the non-USB scripts.
(add_font_entity_to_list): If font_matches_spec returns zero
for a font, and we have some fonts in match_data->known_fonts,
consider the font to be a match if it is named in known_fonts.
(font_supported_scripts): Update the Unicode Subranges.  In
particular, map bit 74 to 'burmese', as this is the name Emacs
uses, not 'myanmar'.  Add a list of scripts that have no USBs
defined for them.
(syms_of_w32font) <Qburmese, Qcuneiform_numbers_and_punctuation>
<Qaegean_number, Qw32_non_USB_fonts>: New symbols.

* lisp/term/w32-win.el (w32-no-usb-subranges): New defconst.
(w32--filter-USB-scripts, w32-find-non-USB-fonts): New functions.
(w32-non-USB-fonts): New defvar.

* lisp/international/fontset.el (setup-default-fontset): Add
more scripts to automatic setup by representative characters.

* doc/emacs/msdos.texi (Windows Fonts): Document
'w32-find-non-USB-fonts' and 'w32-non-USB-fonts'.

* etc/NEWS: Mention 'w32-find-non-USB-fonts' and
'w32-non-USB-fonts'.

Pacify GCC -Wmaybe-uninitialized

* src/dired.c (directory_files_internal):
Pacify GCC 7.4.0-1ubuntu1~18.04.1 x86-64.

Don’t round file-system-info counts

* src/fileio.c (blocks_to_bytes): Convert the byte count to an
integer, since we have bignums now.  This avoids possible rounding
errors for file systems containing more than 8 PiB or so.

* doc/lispref/searching.texi (Rx Constructs): Fix typo.

; * etc/NEWS: Minor copyedits.

Fix some file-mode races

* lisp/emacs-lisp/autoload.el (autoload-ensure-file-writeable):
* lisp/files.el (after-find-file):
* lisp/gnus/gnus-start.el (gnus-dribble-read-file):
* lisp/htmlfontify.el (hfy-copy-and-fontify-file):
* lisp/server.el (server-ensure-safe-dir):
Avoid a race when getting file permissions.

vc-cvs-revert: fix off-by-one file mode

* lisp/vc/vc-cvs.el (vc-cvs-revert): 3950 (#o7556) is wrong as
it keeps other-write but disables other-execute permissions.
3949 (#o7555) was intended here.  Use octal notation for clarity.

Fix imenu menu when we're auto-refreshing

* lisp/imenu.el (imenu--make-index-alist): Don't add a *Refresh*
item if we're auto-refreshing (bug#30449).

Add a new variable smtpmail-retries

* doc/misc/smtpmail.texi (Server workarounds): Mention it (bug#34177).

* lisp/mail/smtpmail.el (smtpmail-retries): New variable.
(smtpmail-via-smtp): Use it.

Allow `M-u' to work when editing fields in Customize

* lisp/cus-edit.el (custom-notify): Allow more editing commands to
work in the Customize buffers (bug#31205).

Copyright-paperwork-exempt: yes

Try resending when getting a transient 4xx SMTP code

* lisp/mail/smtpmail.el (smtpmail-via-smtp): Try resending when
getting a transient error message (bug#34177).

Remove obsolete Lint directives

Most of the directives were wrong anyway.  Apparently
traditional lint hasn’t been used to check Emacs for years.
* src/callint.c (Finteractive):
* src/cm.c (evalcost):
* src/emacs.c (main):
* src/eval.c (call1, call2, call3, call4, call5, call6, call7, call8):
* src/fns.c (concat2, concat3, nconc2):
* src/term.c (calculate_ins_del_char_costs):
Omit ARGSUSED comments.
* src/eval.c (call1): Omit VARARGS comment.

Add backquote tests

* test/lisp/emacs-lisp/backquote-tests.el: New file (bug#37432).

directory-files cleanup and speed tweaking

* src/dired.c (directory_files_internal):
Check ‘match’ before doing anything heavyweight.
Move decls closer to use.
Remove obsolete comments about GC.
No need to encode ‘directory’ or to call multibyte_chars_in_text.
Remove no-longer-needed bug check.
Skip finalname construction if file_attributes fails.

mm-inline-large-images-proportion doc clarification

* lisp/gnus/mm-view.el (mm-inline-large-images-proportion): Doc
clarification.

Default to rescaling images in mm buffers

* doc/misc/emacs-mime.texi (Display Customization): Document it.

* lisp/gnus/mm-decode.el (mm-inline-large-images): Change default
to `resize'.

mm-inline-large-images doc string clarification

* lisp/gnus/mm-decode.el (mm-inline-large-images): Clarify doc string.

With tooltip-mode disabled, don't unconditionally clear the echo area

* lisp/tooltip.el (tooltip-show-help-non-mode): Only clear the
echo area when the current message displayed is a tooltip message
(Bug#3192).

Minor fix for previous maintaining.texi change

* doc/emacs/maintaining.texi (VC Directory Commands): Use @file
for files.

Document vc-dir-ignore

* doc/emacs/maintaining.texi (VC Directory Commands): Document
vc-dir-ignore.

Improve error reporting in file_accessible_directory_p

* src/w32.c (w32_accessible_directory_p): Set errno, so that
file_accessible_directory_p does on MS-Windows, to live up to
its callers' expectations.

Fix initialization of shared-game-score-directory on MS-Windows

* src/callproc.c (init_callproc) [WINDOWSNT]: Run PATH_GAME
through w32_relocate, to expand %emacs_dir%.
[DOS_NT]: Accept EACCES as not "unusual" errno value.
Reported by Richard Copley <rcopley@gmail.com>.

; Disable traces in shadowfile-tests

Remove NEWS entry that talks about a change that was reverted (bug#37257)

Add bindings for ligature oe to iso-transl-char-map

* lisp/international/iso-transl.el (iso-transl-char-map): Add bindings
for small and capital ligature oe.  (Bug#23420)

Fix some file-name-case-insensitive glitches

* src/fileio.c (file_name_directory): New static function,
broken out of Ffile_name_directory.
(file_name_case_insensitive_err, Ffile_writable_p, Fdo_auto_save):
Use it.
(file_name_case_insensitive_err): Rename from
file_name_case_insensitive_p.  Accept an unencoded Lisp_Object
rather than an encoded char *, so that platforms other than
Cygwin and macOS need not encode the file name.  Return an int
-1, 0, errno rather than a bool (setting errno if false),
so that the caller can distinguish an error from false.
All callers changed.
(Ffile_name_case_insensitive_p): Don’t issue system calls on
platforms other than Cygwin and macOS.  Fix bug that broke the
attempt to move up the filesystem tree (it moved up only one
level).

; * etc/NEWS: Fix typo.

Fix unknown-vs-nonexistent glitch for file timestamps

* src/fileio.c (time_error_value): EACCES means the file
timestamp is unknown, not that the file does not exist.

Improve directory-access diagnostics

* src/callproc.c (init_callproc): Diagnose I/O errors,
access errors, etc. for the game directory.
* src/charset.c (init_charset): Improve quality of diagnostic
when the charsets directory has I/O errors, access errors, etc.

Merge from origin/emacs-26

30c4f35 (origin/emacs-26) query-replace-regexp undo: Update next-repl...
c596be0 Amend the menu caption for page "Display Property" in the Eli...
13b9510 Add description of chinese-sisheng

; Merge from origin/emacs-26

The following commit was skipped:

7e527af Fix non-deterministic process test

Merge from origin/emacs-26

8e420c0 Clarify the use of left/right-margin-width in determining cur...

; Merge from origin/emacs-26

The following commit was skipped:

0c3fc71 ; Bump Emacs version to 26.3.50

* admin/upload-manuals: Move a basic check earlier.

* lisp/subr.el (major-mode-suspend): Doc fix