Fixed #14559 -- corrected some typos and misleading docstrings. Thanks to...

Fixed #14559 -- corrected some typos and misleading docstrings.  Thanks to Gabriel Hurley for the patch.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@14441 bcc190cf-cafb-0310-a4f2-bffc1f526a37