* test/lisp/vc/vc-tests/vc-tests.el (vc-test-hg06-version-diff):
Skip on MS-Windows in batch mode.
* test/lisp/vc/vc-git-tests.el (vc-git-test--start-branch): More
portable command for showing the current branch ("--show-current"
is only available since Git 2.22).