Make svnauthz tests pass with Python 3:
Make svnauthz tests pass with Python 3:

* subversion/tests/cmdline/svnauthz_tests.py
  (output_command): Once again, the output file is in binary mode.

git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@1743371 13f79535-47bb-0310-9956-ffa450edef68

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