materio-base-d7/sites/all/modules/contrib/mail/reroute_email/reroute_email.install

<?php

/**
 * @file
 * Reroute Email module installation functions.
 */

/**
 * Implements hook_uninstall().
 */
function reroute_email_uninstall() {
  variable_del('reroute_email_address');
  variable_del('reroute_email_enable');
  variable_del('reroute_email_enable_message');
}

/**
 * Implements hook_install().
 */
function reroute_email_install() {
  db_update('system')
    ->fields(array('weight' => 99))
    ->condition('type', 'module', '=')
    ->condition('name', 'reroute_email')
    ->execute();
}

/**
 * Update module's weight.
 */
function reroute_email_update_7100() {
  db_update('system')
    ->fields(array('weight' => 99))
    ->condition('type', 'module', '=')
    ->condition('name', 'reroute_email')
    ->execute();

  return t('The weight of the Reroute Email module was updated to 99.');
}