lang/en/lang.php

<?php
/**
 * English language file
 *
 * @license    GPL 2 (http://www.gnu.org/licenses/gpl.html)
 * @author     Heikki Hokkanen <hoxu@users.sf.net>
 */

// settings must be present and set appropriately for the language
$lang['encoding']   = 'utf-8';
$lang['direction']  = 'ltr';