A few tweaks to the issue #3721 test added in r1002313.
A few tweaks to the issue #3721 test added in r1002313.

* subversion/tests/cmdline/prop_tests.py

  (propget_redirection): Remove an unnecessary
   svntest.actions.run_and_verify_svn call.  Remove a Windows-ism from the
   arg list passed to subprocess.Popen().  Add some additional explanatory
   comments for this admittedly unusual test.  Catch any duplicate output,
   which is wrong, but would pass the original version of this test.

Suggested by: danielsh


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@1002372 13f79535-47bb-0310-9956-ffa450edef68

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