* doc/emacs/maintaining.texi (VC Directory Commands): Change the
prefix key from "B" to "b". Replace vc-create-tag with vc-create-branch,
and vc-retrieve-tag with vc-switch-branch.
(Switching Branches): Mention vc-switch-branch bound to 'C-x v b s'.
(Creating Branches): Mention vc-create-branch bound to 'C-x v b c'.
* lisp/vc/vc-dir.el (vc-dir-mode-map): In branch keymap 'b' rebind
"c" from vc-create-tag to vc-create-branch, and "s" from
vc-retrieve-tag to vc-switch-branch.
* lisp/vc/vc.el (vc-create-branch): New command.
(vc-retrieve-tag): Add new optional arg 'branchp'.
(vc-switch-branch): New command (bug#50344).
* lisp/vc/vc-hooks.el (vc-prefix-map): Bind "b c" to vc-create-branch,
"b l" to vc-print-branch-log, "b s" to vc-switch-branch. Remove obsolete
and suppressed "b" from vc-switch-backend.
* lisp/vc/vc-dir.el (vc-dir-mode-map): Rebind 'branch-map' from "B" to "b"
for consistency with 'vc-prefix-map'.
* lisp/vc/vc-git.el (vc-git-create-tag): For a new branch read
its start-point. Ask a confirmation if modified files exist.
* test/manual/image-tests.el
(image-skip-unless): Add new arg CONDITION.
(image-tests-image-metadata/gif): Skip test on MS-Windows when
using native image API. (Bug#57691)
* lisp/emacs-lisp/package.el (package-menu--perform-transaction):
Return whether there were errors.
(package-menu-execute): Don't overwrite the error message(s) with
a success message (bug#51201).
* doc/lispref/keymaps.texi (Tool Bar): Document what :vert-only
does (bug#51049). This is not what it was intended to do -- but
what it intended to do didn't really make that much sense either,
so perhaps the prop should just be renamed :image-only?
* lisp/emacs-lisp/edebug.el (edebug--strip-plist): New function
(bug#51026).
(edebug-remove-instrumentation): Use it to remove pros added while
running edebug.
* lisp/textmodes/reftex-global.el (reftex-translate): Recognize
key=val labels given in the optional or mandatory argument of
environments (AUCTeX bug#57720).
* test/lisp/textmodes/reftex-tests.el
(reftex-renumber-simple-labels): New Test.
* lisp/subr.el (replace-string-in-region, replace-regexp-in-region):
Narrow to region before iterating over matches, instead of giving a
bound to the search functions.
* test/lisp/subr-tests.el (test-replace-string-in-region): Add
regression tests (bug#57733).
* lisp/whitespace.el (whitespace--empty-at-bob-matcher,
whitespace--empty-at-eob-matcher, whitespace--update-bob-eob,
whitespace-color-off, whitespace-color-on,
whitespace-empty-at-bob-regexp, whitespace-empty-at-eob-regexp,
whitespace-looking-back, whitespace-post-command-hook): Redo the
`empty' line highlighting logic to ensure that a buffer change causes
all affected `empty' lines to become (un)highlighted (bug#37467).
Also, for improved UX, don't highlight BoB empty lines at or below
point (not just when point is at 1), or EoB empty lines at or above
point (not just when point is `eobp').
(whitespace-bob-marker, whitespace-eob-marker): Clarify documentation.
* test/lisp/whitespace-tests.el (whitespace--with-test-buffer,
whitespace--fu, whitespace-tests--empty-bob,
whitespace-tests--empty-eob): Add tests.
* lisp/whitespace.el (whitespace-empty-at-bob-regexp): Include any
last line trailing whitespace in the BoB empty line match to ensure
that those characters get highlighted.
* lisp/emacs-lisp/ert-x.el (ert-with-test-buffer-selected): New
convenience macro that extends `ert-with-test-buffer' by displaying
the test buffer in a temporary selected window. This makes it easier
to simulate user input in the body via `execute-kbd-macro'.
* test/lisp/emacs-lisp/ert-x-tests.el
(ert-test-test-buffer-selected/*): Add tests.
* src/xterm.c (xm_get_drag_window_1): Add comment explaining
side effect of x_special_window_exists_p.
(handle_one_xevent): Clear Motif drag window upon DestroyNotify.
In addition to debugging, it also reduces syncs necessary to
communicate via the Motif protocol after a defective/old client
sets the drag window without setting the disconnect mode.
* src/xterm.c (x_dnd_send_enter, x_dnd_send_position)
(x_dnd_send_leave, x_dnd_send_drop, x_dnd_do_drop): New
parameter `toplevel'. Use it as the window in sent client
messages.
(x_dnd_cancel_dnd_early, x_dnd_cleanup_drag_and_drop)
(x_dnd_process_quit, x_dnd_update_state, handle_one_xevent)
(x_connection_closed): Give the right toplevel to the client
message sending functions.
* doc/lispref/minibuf.texi (Text from Minibuffer): Mention it.
* lisp/minibuffer.el (format-prompt): Run through
`substitute-command-keys' (bug#51040).
