Let win-tests.py take advantage of build/run_tests.py's --log-to-stdout option.
Let win-tests.py take advantage of build/run_tests.py's --log-to-stdout
option.

* win-tests.py

  (_usage_exit): Add --log-to-stdout to usage text.

  (log_to_stdout): New global variable.

  (global): Accept --log-to-stdout as a valid option.  Call
   run_tests.TestHarness() with null log/fail_log files if the
  --log-to-stdout option is used.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@1061464 13f79535-47bb-0310-9956-ffa450edef68

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