Follow-up to r1514318: fix getopt_tests failures.
Follow-up to r1514318: fix getopt_tests failures.

* subversion/tests/cmdline/getopt_tests.py
  (load_expected_output): Filter out 'using serf x.x.x' from actual output.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@1514356 13f79535-47bb-0310-9956-ffa450edef68

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