Issue #8983: Corrected docstrings.
diff --git a/Lib/doctest.py b/Lib/doctest.py
index d1b96d4..0a0dafd 100644
--- a/Lib/doctest.py
+++ b/Lib/doctest.py
@@ -1786,7 +1786,7 @@
 
     Return (#failures, #tests).
 
-    See doctest.__doc__ for an overview.
+    See help(doctest) for an overview.
 
     Optional keyword arg "name" gives the name of the module; by default
     use m.__name__.