(auto-insert-alist): Following GNU notices, don't say `copyright
_by_'. Use line-beginning-position.
(auto-insert): Check buffer-file-name is non-nil before use.
Generally, sync w/ maintainer version 5.22.
(hs-hide-all-non-comment-function): New var.
(hs-hide-hook, hs-show-hook, hs-minor-mode): Update docstrings.
(hs-hide-all): Use `hs-hide-all-non-comment-function'.
(hs-show-region): Delete this command.
(hs-minor-mode-map): Change bindings to leave "C-c LETTER" alone.
(diff-hunk-text): Correctly use offsets rather than buffer-positions.
(diff-xor): New function.
(diff-find-source-location): Use it. Fix a stupid name clash.
(diff-hunk-status-msg): New function.
(diff-apply-hunk): Drop args OTHER-FILE, DRY-RUN, POPUP and NOERROR.
(diff-test-hunk): Use diff-find-source-location.
(diff-goto-source): Favor the `reverse'.
(change-log-email-face, change-log-file-face)
(change-log-list-face, change-log-conditionals-face)
(change-log-function-face, change-log-acknowledgement-face): New
faces, inheriting from font-lock faces.
(change-log-font-lock-keywords): Use them.
(vc-rcs-state-heuristic): Use it to guess the state of files with
non-strict locking.
(vc-rcs-find-most-recent-rev): Handle the case when a branch has been
set with -b, but not created yet.
(vc-rcs-fetch-master-state): With non-strict locking, compare file
contents in order to find the state.
(vc-rcs-checkin): Allow creation of branches with no changes.
(vc-rcs-unregister, vc-rcs-receive-file,
vc-rcs-set-non-strict-locking): New functions.
(diff-mode): Add support for add-log.el.
(diff-hunk-text): Use char offsets rather than line offsets.
(diff-find-source-location): Replace LINE with line-offset (nil
if not found) and always set POS to a meaningful position.
Adapt to the new char-offsets.
(diff-apply-hunk): Drop support for the unused `select' POPUP.
Adapt to the new diff-find-source-location.
(diff-goto-source): Adapt to the new diff-find-source-location.
(add-change-log-entry): Use it.
Call add-log-file-name-function with the changelog file name if
the current buffer is not associated with any file.
Avoid find-file if the selected window is dedicated.
Move code from diff-apply-hunk. Return buffer rather than file.
(diff-apply-hunk): Use the new result from diff-find-source-location.
(diff-goto-source): Use the new diff-find-source-location.
