drupal .module 文件的开头

我们的 sitenews.module 文件的开头还是老样子。先是一段儿文档，然后实作hook_help() 钩子，提供管理页面的帮助：

<?php
// $Id$
/**
 * The sitenews module.
 * This module adds a content type (News Brief), and
 * provides an action (Send site news) that allows
 * administrators to send periodic updates (via email)
 * about the latest happenings.
 *
 * It also defines a new hook (hook_sitenews()) and
 * defines a new filter (News Brief Placeholders).
 *
 * @file
 */
/**
 * Implementation of hook_help().
 */
function sitenews_help($path, $arg) {
  if ($path == 'admin/help#sitenews') {
    $txt = 'Keep users up-to-date by sending them a status '
      .'report about the latest site happenings. To use this '
      .'module, you will need to assign a trigger to the '
      .'"Send site news as email to all users" action. It '
      .'is recommended that the node publish event be tied to this'
      .'action, as that will result in the site news being sent'
      .'whenever a new "news brief" node is published.';
    $replace = array();
    return '<p>'. t($txt, $replace) .'</p>';
  }