Set sys.save_stdout (to sys.stdout), so doctest-using tests can be run
standalone.
diff --git a/Lib/test/test_support.py b/Lib/test/test_support.py
index a9452fc..5a5e33c 100644
--- a/Lib/test/test_support.py
+++ b/Lib/test/test_support.py
@@ -2,6 +2,8 @@
 
 import sys
 
+sys.save_stdout = sys.stdout
+
 class Error(Exception):
     """Base class for regression test exceptions."""