add_comment_author_meta

function jnews_the_author_link( $author = null, $print = true ) {
    if ( $print ) {
        printf(
            '<!-- Author Start -->
            <a href="%1$s">%2$s</a>
            <!-- Author End -->',
            esc_url( get_author_posts_url( get_the_author_meta( 'ID', $author ) ) ),
            get_the_author_meta( 'display_name', $author )
        );
    } else {
        return sprintf(
            '<!-- Author Start -->
            <a href="%1$s">%2$s</a>
            <!-- Author End -->',
            esc_url( get_author_posts_url( get_the_author_meta( 'ID', $author ) ) ),
            get_the_author_meta( 'display_name', $author )
        );
    }
}