Sort user tables in WordPress admin

With a request to sort users by recently registered. This feature was useful because the site was using s2member and has more than a thousand users. Troubleshooting new users are easier this way.

Code Markup

function wp_users_list_table_query_args( $args ) {
    if ( empty( $args['orderby'] ) )
        $args['orderby'] = 'user_registered';
    if ( empty( $args['order'] ) )
        $args['order'] = 'ASC';

    return $args;
}

add_filter( 'users_list_table_query_args', 'wp_users_list_table_query_args' );