Fix doc typos

Fix doc typos

* lisp/simple.el (line-move-ignore-invisible):
* lisp/sort.el (sort-regexp-fields):
* lisp/cedet/ede.el (project-add-file):
* lisp/gnus/message.el (message-bogus-recipient-p):
* lisp/international/mule.el (define-coding-system):
* lisp/progmodes/ebrowse.el (ebrowse-member-buffer-object-menu):
* lisp/progmodes/xscheme.el (xscheme-allow-output-p)
(scheme-interaction-mode, scheme-debugger-mode)
(xscheme-yank-pop, xscheme-yank-push): Doc fixes.