How to replace Display Author when using Byline plugin in Genesis.

functions.php

<?php
//* Do NOT include the opening php tag

add_filter( 'genesis_post_info', 'sk_post_info_filter' );
/**
 * If a Post has at least 1 Byline, display all Bylines linking to their archive pages
 * Otherwise show the native WordPress Post's author.
 *
 * @author Sridhar Katakam
 * @link   http://sridharkatakam.com/replace-display-author-using-byline-plugin-genesis/
 */
function sk_post_info_filter( $post_info ) {

	$author = get_the_term_list( '', 'byline', '', ', ', '' );

	if ( $author && !is_admin() && !is_feed() ) {
		$post_info = '[post_date] by ' . get_the_author() . '[post_comments] [post_edit]';
	} else {
		$post_info = '[post_date] by [post_author_posts_link] [post_comments] [post_edit]';
	}

	return $post_info;
}