[1.0.X] Fixed #9618: Corrected an error in some example code in the forms...

[1.0.X] Fixed #9618: Corrected an error in some example code in the forms documentation. Thanks matthijs.

r9517 from trunk.


git-svn-id: http://code.djangoproject.com/svn/django/branches/releases/1.0.X@9518 bcc190cf-cafb-0310-a4f2-bffc1f526a37