Follow-up to 1544259:
* subversion/tests/cmdline/switch_tests.py (switch_change_repos_root):
   Add another pattern to the expected error case, since mod_dav_svn
   can return a slightly different error text now.


git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1544262 13f79535-47bb-0310-9956-ffa450edef68