Expose the 'master' instance mentioned in the docs.

diff --git a/Lib/doctest.py b/Lib/doctest.py
index 55f15f11378fac8e5cf54ce24aafa0ed32878b09..979d6d04f2233933e6ebc4c9197730fc5d5d4533 100644 (file)
--- a/Lib/doctest.py
+++ b/Lib/doctest.py
@@ -281,6 +281,7 @@ __all__ = [
     'DocTestSuite',
     'testsource',
     'debug',
+    'master',
 ]
 
 import __future__