apply_filters( 'comment_notification_subject', string $subject, string $comment_id )

1972			 *1973			 * @since 1.5.21974			 *1975			 * @param string $subject    The comment notification email subject.1976			 * @param string $comment_id Comment ID as a numeric string.1977			 */1978			$subject = apply_filters( 'comment_notification_subject', $subject, $comment->comment_ID );1979 1980			wp_mail( $email, wp_specialchars_decode( $subject ), $notify_message, $message_headers );1981 1982			if ( $switched_locale ) {1983				restore_previous_locale();1984			}