drupal/modules/admin.module

<?php
// $Id$

function admin_help($section) {
  switch ($section) {
    case "admin/system/modules#description":
      return t("Handles the administration pages.");
    case "admin":
      return t("Welcome to the administration section. Below are the most recent system events.");
    case "admin/overview":
      return t("This is a complete overview of the site administration page.");
  }
}

function admin_link($type) {
  if ($type == "system" && user_access("access administration pages")) {
    menu("admin", t("administer"), "admin_admin", 9);
  }
}

function admin_admin() {
  print theme("page", watchdog_overview("actions"));
}

?>