fix up circular cimports related to the sockaddr type, and touch up endpoint/getaddrinfo a bit
import doctest
import qmsk.net.socket.address
import qmsk.net.socket.socket
import qmsk.net.socket.sctp
for mod in (
qmsk.net.socket.address,
qmsk.net.socket.socket,
qmsk.net.socket.sctp,
) :
doctest.testmod(mod)