In the test suite, move the hook_failure_message() function into actions.py
so that it can be shared by all tests that use hooks.
* subversion/tests/cmdline/commit_tests.py
(hook_failure_message): Move to actions.py.
(post_commit_hook_test, start_commit_hook_test, pre_commit_hook_test):
Adjust calls to it accordingly.
* subversion/tests/cmdline/svntest/actions.py
(hook_failure_message): Move from commit_tests.py.
git-svn-id: http://svn.apache.org/repos/asf/subversion/trunk/subversion/tests/cmdline@893527 13f79535-47bb-0310-9956-ffa450edef68