Missing Argument 4 in buddylist_user function.

I was getting several error messages from different modules, including buddylist, when a user logs out or when a user's page is viewed that look like this:

Warning: Missing argument 4 for buddylist_user() in /home/code0/domains/code0range.net/public_html/modules/buddylist/buddylist.module on line 82

I thought that it was related to this bug in user.module:

http://drupal.org/cvs?commit=14038

But that did not fix the problem. Based on the changes to the Album and Automember modules to fix the same problem, I think the buddylist_user() function needs the following change on line 82 to fix the missing argument:

function buddylist_user($type, &$edit, &$thisuser, $category) {

became this:

function buddylist_user($type, &$edit, &$thisuser, $category = NULL) {

Patch is attached.