WordPress at a glance
function is not described

comment_author_rss() WP 1.0.0

Display the current comment author in the feed.

No Hooks.

Return

Nothing (null).

Usage

comment_author_rss();

Code of comment author rss: wp-includes/feed.php VER 5.1.1

<?php
function comment_author_rss() {
	echo get_comment_author_rss();
}