Error in term_permissions_allowed()

I'm afraid I don't know how to submit a patch, but I was getting an error on any node form that used a vocabulary with permissions on it, and the field wouldn't appear. Fixed it by changing line 268; it looks to me like imploding the array keys into a string is not necessary. db_query() seems to want to use the array itself:

$users_uid = array_keys($user->roles);