Bad copy-n-paste on character conversion fix - how screwed am I?

Hey folks,

   I just had a copy-n-paste mishap on one of my databases, while
fixing the character conversion problem.

   The following erroneous command was entered:

UPDATE pg_proc SET proacl = '{=}'
;

   .. instead of the correct one (missing the WHERE clause).  It
updated 1747 rows - oh crap.

   This is 8.0.2 running on OpenBSD 3.5-STABLE.  Is there a way to
fix what I've just borked?  I'm not even real sure what damage I've
just done...

   Any help would be appreciated.  :)

Benny


--
"You come from a long line of scary women."     -- Ranger, "Three To
                                                   Get Deadly"