add $uid argument to favorite_nodes_add($nid) function, for better flexibility

add $uid argument to favorite_nodes_add($nid) function, for better flexibility
default will be the currently login user, but this function could be called with a different user.
this is the changed function: (sorry i didn't patch it)

<?php
/**
 * Add a favorite node.
 */
function favorite_nodes_add($nid,$uid) {
  
  if (empty($uid)) {
    global $user;
  }
  else if  {
    $user = user_load('uid'=>$uid);
    if (!$user->uid) {
      return FALSE;
    }
  }

  $node = node_load($nid);
  if (!$node->nid) {
    return FALSE;
  }

  db_query("DELETE FROM {favorite_nodes} WHERE nid = %d AND uid = %d", $nid, $user->uid);
  db_query("INSERT INTO {favorite_nodes} (nid, uid, last) VALUES (%d, %d, %d)", $nid, $user->uid, time());

  /**
   * Invoke hook_favorite_nodes(), which has the following parameters:
   * @param op
   * The operation being performed. Can be either 'add' or 'delete'.
   * @param node
   * The node object being added or deleted.
   */
  module_invoke_all('favorite_nodes', 'add', $node);
  return TRUE;
}
?>