drupal_module__tweak/tweak.module

<?php
/**
 * @file
 * Drupal Tweaking library
 *
 * @copyright Copyright 2011 Ouest Systèmes Informatiques SARL
 *
 * Licensed under the General Public License version 2 or later.
 */

/**
 * Implements hook_form_system_modules_alter().
 *
 * Add the D7 "help/permissions/configure" options to the module listing page.
 */
function tweak_form_system_modules_alter(&$form, &$form_state) {
  if (!isset($form['#theme']) || $form['#theme'] != 'confirm_form') {
    $actions = array(
      'help' => t('Help'),
      'permissions' => t('Permissions'),
      'configure' => t('Configure'),
    );

    foreach ($form['validation_modules']['#value'] as $name => $module) {
      $info = $module->info;

      $description = isset($info['description'])
        ? $info['description']
        : '';

      $links = array();
      foreach ($actions as $action_name => $action_title) {
        if (!empty($info[$action_name])) {
          $offset = strpos($info[$action_name], '#');
          if ($offset === FALSE) {
            $options = array();
            $path = $info[$action_name];
          }
          else {
            $options = array(
              'fragment' => drupal_substr($info[$action_name], $offset + 1), // +1 to skip #
            );
            $path = drupal_substr($info[$action_name], 0, $offset);
          }
          $class = "about-module about-module-$action_name";
          $options += array(
            'attributes' => array('class' => $class),
          );
          $links[$action_name] = l($action_title, $path, $options);
        }
      }
      if (!empty($links)) {
        $form['description'][$name]['#value'] .= '<br />' . implode('', $links);

      }
    }
  }
}

/**
 * Implements hook_init().
 *
 * Add module CSS.
 */
function tweak_init() {
  drupal_add_css(drupal_get_path('module', 'tweak') . '/theme/tweak.css');
}