[WP atom:updated] Wordpress Plugin to add atom:updated to rss feed #Wordpress #RSS

wordpress-rss-atom-updated.php

<?php
/**
 * @version 0.1
 */
/*
Plugin Name: Atom:Updated
Plugin URI: https://gist.github.com/goodevilgenius/9786001
Description: This plugin adds atom:updated to your RSS2 feed
Author: Dan Jones
Version: 0.1
Author URI: http://danielrayjones.com/
*/

function atom_updated() {
    echo "<atom:updated>";
    echo get_post_modified_time('Y-m-d\TH:i:s\Z', true);
    echo "</atom:updated>\n";
}
add_action( 'rss2_item', 'atom_updated' );

?>

Thanks for this!