Attempt to fix the AIX make test failures

Attempt to fix the AIX make test failures

For some reason AIX does not return the sender address in the AF_UNIX recvfrom.
So the faked netbios name lookup does not work with socket wrapper, nmbd can't
know where to send the reply. This patch works around this by telling smbclient
explicitly where to connect.

If there's any AIX experts listening -- how do I get the sender address from
AF_UNIX recvfrom?

Volker
(This used to be commit 8ba3b8cf7aca657ad8426981d810c36ee6a34a2f)