WordPress MU

I'm getting ready to upgrade, and had heavily edited the core files so I need to do all of that before the upgrade. However, I read that the security fix was a one line edit. In Donncha's blog he wrote:

I’ll post to the MU forums in a few days time with details of the security fix. It’s a short one-liner that can be applied within minutes if you can’t upgrade.

But from what I can find, no one has posted it. If anyone happens to know it, I would greatly appreciate it.

Thanks :)

It maybe that wp-admin/edit.php fix in r934

http://trac.mu.wordpress.org/changeset/934

The 1.2 tag (r947) was on March 28th so the dates would be about right.