[horde] Patch for Links sql driver on postgres

[Chuck Hagenbuch]

Quoting Paul Cooper <pgc at ucecom.com>:

> Noticed the Links stuff in CVS version and started to try an play with
> it, however it was causing a DB error because the sql driver wasn't
> inserting the link_id - see the attached diff

Committed, thanks.

-chuck

--
Charles Hagenbuch, <chuck at horde.org>
The alligators were there, too, in a bathtub inside the house.