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alist.

Fixes: debbugs:6580

* editfns.c (Fstring_to_char): Clarify just what is returned
(bug#6576).  Text by Eli Zaretskii.

* subr.el (with-silent-modifications): Clarify somewhat what the
macro inhibits.

Fixes: debbugs:6525

* simple.el (eval-expression): Note what it does if called
interactively.

Fixes: debbugs:6495

* keymaps.texi (Menu Bar): Mention :visible and :enable
(bug#6344).  Text by Drew Adams.

Fixes: debbugs:6334

Fixes: debbugs:6387

* lisp/window.el (switch-to-buffer): New arg FORCE-SAME-WINDOW.  Use
pop-to-buffer buffer-or-name if it is nil.

* lisp/emacs-lisp/bytecomp.el (byte-compile-interactive-only-functions):
Remove switch-to-buffer.

Fixes: debbugs:6234

Fixes: debbugs:6218

Fixes: debbugs:6117

* tabify.el (untabify): Preserve the current column so that point
doesn't move.

Fixes: debbugs:6032

* progmodes/cperl-mode.el (cperl-syntaxify-by-font-lock): Rewrite
to avoid awkward possessive "s".

Fixes: debbugs:5986

* lisp/dired.el (dired-use-ls-dired): Doc fix.
(dired-insert-directory): Give a message the first time
if ls is found not to support --dired.

* mark.texi (Mark Ring): Clarify how many locations are saved
(bug#5770).
(Global Mark Ring): Ditto.

* simple.el (toggle-truncate-lines): Clarify what is toggled
(bug#5580).  Text by Drew Adams.

* font-lock.el (font-lock-comment-face): Use the high contrast
"yellow" color for font-lock-comment-face on low color terminals
using a dark background color.

Fixes: debbugs:4221

Fixes: debbugs:5325

Fixes: debbugs:5259

* simple.el (blink-matching-open): Say that we were unable to find
the match within the limit, if we're limited (bug#5122).

Fixes: debbugs:4869

* url-http.el (url-http): Copy over `url-show-status' to the async
buffer so that `url-display-percentage' does the right thing
(bug#4680).

* net/browse-url.el (browse-url-default-browser)
(browse-url-browser-function): Make the default browser choice a
bit more logical.  Also clean up the doc string.

Fixes: debbugs:4300

Fixes: debbugs:4440

Fixes: debbugs:8971

Fixes: debbugs:8971

(Info-find-file): Fall back on the installation directory if we can't find the info node anywhere else.

Fixes: debbugs:5181

* xselect.c (Qx_lost_selection_functions)
(Qx_sent_selection_functions): New vars.
(syms_of_xselect): DEFSYM them.
(x_handle_selection_request): Pass Qx_sent_selection_functions
rather than Vx_sent_selection_functions to Frun_hook_with_args.
(x_handle_selection_clear,x_clear_frame_selections):
Pass Qx_lost_selection_functions rather than
Vx_lost_selection_functions to Frun_hook_with_args.

The old code sometimes used this field without initializing it.

In theory, the old code could also have corrupted Emacs internals,
though it'd be very unlikely.

* files.el (after-find-file): Give a better error message when
trying to find a symlink that points to a file that doesn't exist
(bug#4398).