'When the server sends the command\'s exit status, record it for later
delivery to the protocol.
@param data: The network-order four byte representation of the exit
status of the command.
@type data: L{bytes}'

def request_exit_status(self, data):

    (status,) = unpack('>L', data)
    if (status != 0):
        self._reason = ProcessTerminated(status, None, None)
