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Path: /data/applications/aps.bak/wordpress/4.2.1/wordpress/wp-admin/ [ Home ]

File: ms-upgrade-network.php

<?php
/**
 * Multisite upgrade administration panel.
 *
 * @package WordPress
 * @subpackage Multisite
 * @since 3.0.0
 */

require_once( dirname( __FILE__ ) . '/admin.php' );

wp_redirect( network_admin_url('upgrade.php') );
exit;