* @param socket the socket through which the ack was received
* @param tunnel connection to the other end
* @param sender who sent the message
- * @param ack the acknowledgment message
+ * @param msg the data message
* @param atsi performance data for the connection
* @return GNUNET_OK to keep the connection open,
* GNUNET_SYSERR to close it (signal serious error)
* @param socket the socket through which the ack was received
* @param tunnel connection to the other end
* @param sender who sent the message
- * @param ack the acknowledgment message
+ * @param msg the transmit close message
* @param atsi performance data for the connection
* @return GNUNET_OK to keep the connection open,
* GNUNET_SYSERR to close it (signal serious error)