* lisp/vc/vc-dir.el (vc-dir): Call the backend-specific minor mode
if it exists.
* lisp/vc/vc-git.el (vc-dir-git-mode-map): New map.
(vc-dir-git-mode): New minor mode.

`git version` on macOS returns e.g., "git version 2.30.1 (Apple
Git-130)" and `vc-git--program-version` currently returns "0" instead
of "2.30.1".

* lisp/vc/vc-git.el (vc-git--program-version): Ignore text after
the version number when parsing git versions (bug#52172).

Copyright-paperwork-exempt: yes

* lisp/vc/vc-git.el (vc-git-stash-read): Pass OMIT-NULLS (bug#52119).
(vc-git-stash-list): Simplify.

* lisp/abbrev.el (expand-region-abbrevs):
* lisp/calc/calc-graph.el (calc-graph-show-dumb):
* lisp/calc/calc-help.el (calc-help-for-help):
* lisp/calc/calc-mode.el (calc-auto-why):
* lisp/calc/calc.el (calc-do):
* lisp/calculator.el (calculator-mode):
* lisp/dired-aux.el (dired-create-files)
(dired-do-create-files-regexp, dired-create-files-non-directory):
* lisp/dired-x.el (dired-virtual):
* lisp/dired.el (dired-mark-region, dired-unmark-all-files):
* lisp/emacs-lisp/map-ynp.el (map-y-or-n-p):
* lisp/emacs-lisp/re-builder.el (reb-enter-subexp-mode):
* lisp/epa-ks.el (epa-ks--display-keys):
* lisp/erc/erc.el (erc-toggle-debug-irc-protocol):
* lisp/files.el (save-some-buffers):
* lisp/gnus/gnus-dired.el (gnus-dired-find-file-mailcap)
(gnus-dired-print):
* lisp/gnus/gnus-group.el (gnus-keep-same-level):
* lisp/gnus/gnus-score.el (gnus-score-find-trace):
* lisp/gnus/gnus.el (to-list):
* lisp/gnus/message.el (message--send-mail-maybe-partially):
* lisp/mail/supercite.el (sc-set-variable):
* lisp/minibuffer.el (minibuffer-inactive-mode):
* lisp/progmodes/etags.el (select-tags-table):
* lisp/progmodes/idlw-shell.el (idlwave-shell-mode)
(idlwave-shell-char-mode-loop):
* lisp/replace.el (query-replace-help):
* lisp/simple.el (set-variable):
* lisp/subr.el (read-char-from-minibuffer):
* lisp/textmodes/ispell.el (ispell-help, ispell-message):
* lisp/textmodes/reftex-global.el (reftex-find-duplicate-labels):
* lisp/textmodes/reftex-vars.el
(reftex-toc-include-file-boundaries)
(reftex-toc-include-labels, reftex-toc-include-index-entries)
(reftex-toc-include-context, reftex-toc-follow-mode)
(reftex-index-include-context, reftex-index-follow-mode)
(reftex-enable-partial-scans)
(reftex-auto-update-selection-buffers)
(reftex-highlight-selection):
* lisp/time.el (display-time-update):
* lisp/vc/ediff-help.el (ediff-help-for-quick-help):
* lisp/vc/ediff-init.el (ediff-keep-variants):
* lisp/vc/ediff-ptch.el (ediff-fixup-patch-map)
(ediff-patch-file-internal):
* lisp/windmove.el (windmove-delete-default-keybindings): Use
'substitute-command-keys' for literal key sequences.

* lisp/userlock.el (userlock--fontify-key): Remove function.
(ask-user-about-lock, ask-user-about-lock-help)
(ask-user-about-supersession-threat)
(ask-user-about-supersession-help): Use 'substitute-command-keys' for
literal key sequences.

* lisp/ibuffer.el (ibuffer-unmark-all): Use 'substitute-command-keys'
for command.

* lisp/vc/smerge-mode.el (smerge-command-prefix):
* lisp/vc/pcvs.el (cvs-minor-mode-prefix):
* lisp/vc/diff-mode.el (diff-minor-mode-prefix): Revert to
previous values, as external packages rely on those values.

* lisp/dired.el (dired-get-file-for-visit):
* lisp/doc-view.el (doc-view-buffer-message):
* lisp/help.el (help-window-setup):
* lisp/ibuf-ext.el (ibuffer-do-kill-lines):
* lisp/vc/ediff.el (ediff-documentation): Use 'substitute-command-keys'.

* lisp/vc/smerge-mode.el (smerge-basic-map):
* lisp/vc/pcvs.el (cvs-mode-map):
(cvs-minor-mode-prefix):
* lisp/vc/log-view.el (log-view-mode-map):
* lisp/vc/log-edit.el (log-edit-mode-map):
* lisp/vc/diff-mode.el (diff-mode-shared-map):
(diff-minor-mode-prefix):
* lisp/vc/cvs-status.el (cvs-status-mode-map):
* lisp/simple.el (special-mode-map):
* lisp/outline.el (outline--insert-open-button):
(outline--insert-close-button):
* lisp/net/shr.el (shr-map):
* lisp/net/eww.el (eww-link-keymap):
(eww-mode-map):
(eww-submit-map):
(eww-bookmark-mode-map):
(eww-history-mode-map):
(eww-buffers-mode-map):
* lisp/mh-e/mh-speed.el (:keymap):
* lisp/mh-e/mh-show.el (:keymap):
* lisp/mh-e/mh-search.el (:keymap):
* lisp/mh-e/mh-letter.el (:keymap):
* lisp/mh-e/mh-folder.el (:keymap):
* lisp/international/emoji.el (emoji-list-mode-map):
* lisp/gnus/spam.el (:keymap):
* lisp/gnus/mml.el (mml-mode-map):
* lisp/gnus/message.el (message-mode-map):
* lisp/gnus/gnus-undo.el (gnus-undo-mode-map):
* lisp/gnus/gnus-topic.el (gnus-topic-mode-map):
* lisp/gnus/gnus-sum.el (:keymap):
* lisp/gnus/gnus-srvr.el (gnus-server-mode-map):
(gnus-browse-mode-map):
* lisp/gnus/gnus-salt.el (gnus-pick-mode-map):
(gnus-tree-mode-map):
* lisp/gnus/gnus-msg.el (:prefix):
* lisp/gnus/gnus-ml.el (gnus-mailing-list-mode-map):
* lisp/gnus/gnus-kill.el (gnus-kill-file-mode-map):
* lisp/gnus/gnus-html.el (gnus-html-displayed-image-map):
* lisp/gnus/gnus-group.el (:keymap):
* lisp/gnus/gnus-eform.el (gnus-edit-form-mode-map):
* lisp/gnus/gnus-draft.el (gnus-draft-mode-map):
* lisp/gnus/gnus-dired.el (gnus-dired-mode-map):
* lisp/gnus/gnus-bookmark.el (gnus-bookmark-bmenu-mode-map):
* lisp/gnus/gnus-art.el (:keymap):
(gnus-article-edit-mode-map):
* lisp/gnus/gnus-agent.el (gnus-agent-group-mode-map):
(gnus-agent-summary-mode-map):
(gnus-agent-server-mode-map):
(gnus-category-mode-map): Adjust `defvar-keymap' and
`define-keymap' to the new syntax.

* lisp/vc/vc-sccs.el (vc-sccs-responsible-p):
* lisp/vc/vc-rcs.el (vc-rcs-responsible-p):
* lisp/vc/vc-cvs.el (vc-cvs-responsible-p): Make the previous
change work with relative file names, too.

* lisp/vc/vc-sccs.el (vc-sccs-responsible-p):
* lisp/vc/vc-rcs.el (vc-rcs-responsible-p):
* lisp/vc/vc-dav.el (vc-dav-responsible-p):
* lisp/vc/vc-cvs.el (vc-cvs-responsible-p): Return a file name
instead of t when we get a match (which is what
vc-backend-for-registration expects) (bug#51800).