/**
 * Implements hook_menu_link_alter().
 */
function {{ machine_name }}_menu_link_alter(&$item) {
  // Make all new admin links hidden (a.k.a disabled).
  if (strpos($item['link_path'], 'admin') === 0 && empty($item['mlid'])) {
    $item['hidden'] = 1;
  }
  // Flag a link to be altered by hook_translated_menu_link_alter().
  if ($item['link_path'] == 'devel/cache/clear') {
    $item['options']['alter'] = TRUE;
  }
  // Flag a link to be altered by hook_translated_menu_link_alter(), but only
  // if it is derived from a menu router item; i.e., do not alter a custom
  // menu link pointing to the same path that has been created by a user.
  if ($item['link_path'] == 'user' && $item['module'] == 'system') {
    $item['options']['alter'] = TRUE;
  }
}