Get the Python 3 tests running without the GLOBAL_SCHEDULER option.
Get the Python 3 tests running without the GLOBAL_SCHEDULER option.

* build/run_tests.py
  (TestHarness._run_c_test.progress_func,
   TestHarness._run_py_test.progress_func,
   TestHarness._run_test):  The log is binary data, so write byte strings
                            to it.

git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@1743556 13f79535-47bb-0310-9956-ffa450edef68

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