Merge from origin/emacs-28

5e47d6284b * lisp/gnus/mm-encode.el (mm-default-file-encoding): Fix "...
e71c7a7c60 Fix default-directory of buffers visiting files in renamed...
cccaa9c31d Fix a kill-append regression
33828e4818 * doc/misc/eww.texi (Advanced): Correct outdated info (bug...
e8d2f40f41 Clean up the MSDOS port
338eda09d8 Fix typo in next-error-find-buffer-function

# Conflicts:
#	doc/misc/eww.texi

diff --cc doc/misc/eww.texi
Simple merge

diff --cc lisp/dired-aux.el
Simple merge

diff --cc lisp/simple.el
Simple merge

diff --cc msdos/sed1v2.inp
Simple merge

diff --cc msdos/sedlibmk.inp
Simple merge