Extend a test to point out that it is broken over ra_svn.
Extend a test to point out that it is broken over ra_svn.

Found by: philip, danielsh

* subversion/tests/cmdline/svnsync_tests.py
  (basic_authz): Include a positive control as well, and mark XFail over ra_svn.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@1294134 13f79535-47bb-0310-9956-ffa450edef68

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