Fixup to r13889: fix Python syntax error.
Fixup to r13889: fix Python syntax error.

* subversion/tests/clients/cmdline/revert_tests.py:
    Skip() needs a skip condition.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@853981 13f79535-47bb-0310-9956-ffa450edef68

wbond/subversion,wbond/subversion,YueLinHo/Subversion,wbond/subversion,wbond/subversion,YueLinHo/Subversion,wbond/subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,wbond/subversion,YueLinHo/Subversion,YueLinHo/Subversion,wbond/subversion,YueLinHo/Subversion