[1.3.X] Fixes #15862 -- Error in post_syncdb documentation example. Thanks for...

[1.3.X] Fixes #15862 -- Error in post_syncdb documentation example. Thanks for the report and patch andialbrecht.

Backport of r16091 from trunk.

git-svn-id: http://code.djangoproject.com/svn/django/branches/releases/1.3.X@16092 bcc190cf-cafb-0310-a4f2-bffc1f526a37