I couldn't figure out how to upload my patch, so here it is:
33,34c33,34
< comment_author_url, comment_date, comment_date_gmt, comment_content, comment_post_ID,
< $wpdb->posts.ID, $wpdb->posts.post_password FROM $wpdb->comments
---
> comment_author_url, comment_date, comment_content, comment_post_ID,
> $wpdb->posts.ID, $wpdb->posts.post_password, $wpdb->posts.post_title FROM $wpdb->comments
38c38
< ORDER BY comment_date DESC LIMIT " . get_settings('posts_per_rss') );
---
> ORDER BY comment_date";
42c42
< $wpdb->posts.ID, $wpdb->posts.post_password FROM $wpdb->comments
---
> $wpdb->posts.ID, $wpdb->posts.post_password, $wpdb->posts.post_title FROM $wpdb->comments
52c52
< <title>by: <?php comment_author_rss() ?></title>
---
> <title><?php comment_author_rss() ?> on '<?php echo $comment->post_title; ?>'</title>
