Example for post_syncdb signal.

[Frank Wiles]

While in retrospect, the documentation for post_syncdb does inform the user it wasn't entirely clear to me that you need to pass the models.py itself as sender and not a specific model. I figured this docs patch might clarify it for others. It adds a simple example at the bottom of the current post_syncdb docs.

[Frank Wiles]

docs patch

[Tim Graham]

(In [15104]) Fixed #14712 - Add an example for the post_syncdb signal. Thanks Frank Wiles for the patch.

[Tim Graham]

(In [15105]) [1.2.X] Fixed #14712 - Add an example for the post_syncdb signal. Thanks Frank Wiles for the patch.

Backport of r15104 from trunk.