Fixed #10978 -- Clarified that the include statement is part of the urlpattern...

Fixed #10978 -- Clarified that the include statement is part of the urlpattern definition. Thanks to swatermasysk for the suggestion.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@11052 bcc190cf-cafb-0310-a4f2-bffc1f526a37