(vc-next-action-on-file): Add missing let-binding.

(vc-next-action-on-file): Add missing let-binding.

(vc-default-backend, vc-keep-workfiles, vc-consult-headers):
(vc-mistrust-permissions, vc-path): Vars moved to vc-hooks.el.
(vc-match-substring, vc-lock-file, vc-parse-buffer, vc-master-info):
(vc-log-info, vc-consult-rcs-headers, vc-fetch-properties):
(vc-backend-subdirectory-name, vc-locking-user, vc-true-locking-user):
(vc-latest-version, vc-your-latest-version, vc-branch-version):
(vc-workfile-version): Functions moved to vc-hooks.el.
(vc-trunk-p, vc-minor-revision, vc-branch-part): Functions moved
here from vc-hooks.el.