Only parse test options if the options object is not already supplied.
Only parse test options if the options object is not already supplied.

* subversion/tests/cmdline/svntest/main.py
  (_parse_options): New.
  (run_tests): Run the new function, if options are not already supplied.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@955038 13f79535-47bb-0310-9956-ffa450edef68

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