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deal with multiple file arguments.
(vc-git-print-log): Deal with multiple file arguments.

diff-refine-hunk.  Adjust users.
(diff-unified-hunk-p, diff-splittable-p): New functions.
(diff-mode-menu): Use it to disable Split when it doesn't work.

if applicable, so as to save undo-log space.

(diff-file-kill): Use it.
(diff-beginning-of-hunk): Add arg `try-harder' using it.
(diff-restrict-view, diff-find-source-location, diff-refine-hunk):
Use it so they find the hunk even when we're in the file header.

(vc-git-command,vc-git-dir-state,vc-git-dired-state-info),
(vc-git-create-repo): New functions.
(vc-git-registered): New autoloaded function definition.
(vc-git-registered): Use vc-git-root.
(vc-git-responsible-p): New defalias.
(vc-git-annotate-extract-revision-at-line): Uncomment.
(vc-git-print-log): Add the file name to the log.
(vc-git-log-view-mode): New derived mode.
(vc-git-diff,vc-git-annotate-command): Use vc-git-command.

for branches and new files.

* vc-hooks.el (vc-default-mode-line-string): Move mouse-face and
local-map handling ...
(vc-mode-line): ... here. Improve handling of help-echo.

* vc.el (mode-line-string): Document help-echo usage.

(change-log-indent): Call change-log-fill-parenthesized-list.
(change-log-fill-paragraph): Bind fill-indent-according-to-mode to
t.  Have lines with leading asterisk start a paragraph.

(math-smallest-emacs-expt): New variables.
(math-use-emacs-fn): New function.
(math-exp-raw): Evaluate with `math-use-emacs-fn', when appropriate.

(image-dired-write-tags, image-dired-remove-tag)
(image-dired-list-tags, image-dired-write-comments)
(image-dired-get-comment, image-dired-mark-tagged-files)
(image-dired-create-gallery-lists): Call new func.

(vc-hg-print-log): Fix expected return value for vc-hg-command.
(vc-hg-next-version, vc-hg-delete-file, vc-hg-rename-file)
(vc-hg-register, vc-hg-create-repo, vc-hg-checkin)
(vc-hg-revert): Likewise.
(vc-hg-revision-table, vc-hg-revision-completion-table): New
functions.

Use derived-mode-p rather than checking major-mode directly.

group and version.

to after we've switched to the ChangeLog buffer so we get the right value.

name for buffer-file-name if it refers to a directory.

compilation-directory.
(compile): Set the global value of compilation-directory.
(recompile): Use compilation-directory even if run from the compilation buffer.

in $(INSTALL_DIR)/lisp/ if they already exist.

Remove use of store-match-data.

(flymake-find-buildfile): Use locate-dominating-file.

(vc-do-command): Minor simplification.
(vc-expand-dirs): Use push.