Merge from 3.4

Doc/tutorial/venv.rst

@@ -51,7 +51,7 @@ directory path::
 
 This will create the ``tutorial-env`` directory if it doesn't exist,
 and also create directories inside it containing a copy of the Python
-interpreter, the standard library, and various supporting files.  If you
+interpreter, the standard library, and various supporting files.
 
 Once you've created a virtual environment, you need to
 activate it.