Added to docstring of `setup_environ` about what the function returns.
Added to docstring of `setup_environ` about what the function returns.

--HG--
extra : convert_revision : svn%3Abcc190cf-cafb-0310-a4f2-bffc1f526a37/django/trunk%406620

Belgabor/django,Belgabor/django,Belgabor/django