<?php
printf( __( '<span class="%1$s">By</span> %2$s', 'twentyten' ),
'meta-prep meta-prep-author',
- sprintf( '<span class="author vcard"><a class="url fn n" href="%1$s" title="%2$s">%3$s</a></span>',
+ sprintf( '<span class="author vcard"><a class="url fn n" href="%1$s" title="%2$s" rel="author">%3$s</a></span>',
get_author_posts_url( get_the_author_meta( 'ID' ) ),
sprintf( esc_attr__( 'View all posts by %s', 'twentyten' ), get_the_author() ),
get_the_author()