Trivial fix:  make lock_tests.py pass again.
Trivial fix:  make lock_tests.py pass again.

* subversion/tests/clients/cmdline/lock_tests.py 
  (break_lock, handle_defunct_lock, enforce_lock):  don't pass -m to
      'svn unlock'.

jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion