Run tests with an exclusive lock on working copies. This should reduce test run time and also ensures that exclusive locking mode is tested.
Run tests with an exclusive lock on working copies. This should reduce test
run time and also ensures that exclusive locking mode is tested.

I've run ra_local and ra_serf tests with this change and got no failures.
In any case, if there were any test failures with exlusive locking mode
enabled, they'd most likely expose bugs in the test suite or Subversion itself.

* subversion/tests/cmdline/svntest/main.py: Enable exclusive locking in the
   client configuration used for tests.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@1493097 13f79535-47bb-0310-9956-ffa450edef68

YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion