Provide option to alter logout link instead of adding additional menu item

I am attempting to convert subuser_switch to use masquerade as I think it makes more sense, but I think having the following feature is a must and works better for most projects I have used this on.

/**
 * Implements hook_menu_link_alter().
 *
 * @see subuser_switch_translated_menu_link_alter()
 */
function subuser_switch_menu_link_alter(&$item) {
  // Allow the logout link to be altered.
  if ($item['link_path'] == 'user/logout') {
    $item['options']['alter'] = TRUE;
  }
}

/**
 * Implements hook_translated_menu_link_alter().
 */
function subuser_switch_translated_menu_link_alter(&$item, $map) {
  // If currently running as a child user change the "Log out" link to
  // "Log out (return)".
  if ($item['href'] == 'user/logout' && !empty($_SESSION['subuser_parent'])) {
    $item['title'] = t('Log out (return)');
    $item['href'] = 'subuser/switch/' . $_SESSION['subuser_parent'];
  }
}