WordPress at a glance
filter is not described

comment_notification_text filter-hook . WP 1.5.2

Filters the comment notification email text.

Usage

add_filter( 'comment_notification_text', 'filter_function_name_6364', 10, 2 );
function filter_function_name_6364( $notify_message, $comment_id ){
	// filter...

	return $notify_message;
}
$notify_message(string)
The comment notification email text.
$comment_id(int)
Comment ID.

Where the hook is called

wp_notify_postauthor()
comment_notification_text
wp-includes/pluggable.php 1548
$notify_message = apply_filters( 'comment_notification_text', $notify_message, $comment->comment_ID );

Where the hook is used (in WP core)

Does not used.