== DF-2836: listener state inheritance ==
tcp: shutdown(listener, SHUT_WR) = 0
tcp: connect failed: Connection refused
unix: shutdown(listener, SHUT_WR) = 0
unix: connect ok, accept = 7
unix: client  send  = 4 (No such file or directory)
unix: accepted recv = 4 (No such file or directory)
unix: accepted send = -1 errno=32 [Broken pipe]  <-- want 4; EPIPE(32) = BUG