smart
transport support, fall back to dumb transports) and just
exiting with error message printed (can&#8217;t connect, don&#8217;t bother
trying to fall back).  After line feed terminating the positive
(empty) response, the output of the service starts.  Messages
(both request and response) must consist of zero or more
PKT-LINEs, terminating in a flush packet. Response messages will
then have a response end packet after the flush packet to
indicate the end of a response.  The client must not
expect the se