<p class="post-author author vcard">

				<?php

				/* translators: this is for the author byline, such as 'by John Doe' */

				$author_url = '<a href="' . get_author_posts_url( get_the_author_meta( 'ID' ) ) . '" class="url">' . get_the_author_meta( 'display_name' ) . '</a>';

				printf( __( 'by %s', 'graphene' ), '<span class="fn nickname">' . $author_url . '</span>' );

				?>

			</p>