notify generates errors (from cron.php) when table prefix is used

When a table prefix is used (the $db_prefix setting in conf.php), notify.module generates errors when cron is run and a new node has been created.

Here is an example:

To: webmaster@ctiaustin.org
From: root@s9008.hostcentric.net (Cron Daemon)
Subject: Cron <user@s9008> bin/drupal-periodic
Date: 29 Jun 2004 19:36:01 -0000

user error: Table '77611_1.page' doesn't exist
query: SELECT nid FROM page WHERE nid = 24 AND format = 1 in /data/sites/4043/ctiaustin.org/www/new/includes/database.mysql.inc on line 97.

Notice that it is trying to query table page rather than prefix_page.

Attached is a patch that appears to fix the problem.