rss_post_footer

function rss_post_footer($content) {
global $post;
$mflink = get_permalink($post->ID);
$mftitle = get_the_title($post->ID);
$content =
$content.
"<p>".
"<strong>Continue reading:</strong> ".
"<a href=\"".$mflink."\">".$mftitle."</a>".
"</p>";
return $content;
}
add_filter('the_excerpt_rss', 'rss_post_footer');
add_filter('the_content_feed', 'rss_post_footer');