Source

File: wp-includes/class-walker-comment.php

public function end_el( &$output, $comment, $depth = 0, $args = array() ) {
		if ( ! empty( $args['end-callback'] ) ) {
			ob_start();
			call_user_func( $args['end-callback'], $comment, $args, $depth );
			$output .= ob_get_clean();
			return;
		}
		if ( 'div' === $args['style'] ) {
			$output .= "</div><!-- #comment-## -->\n";
		} else {
			$output .= "</li><!-- #comment-## -->\n";
		}
	}