In the past 2 months or so, after rlogining into another host, the
environment has the geometry wrong. Peter suggested that this behavior
change was most likely caused by the PAM stuff that changed to run a proper
session with a forked child. And that for some reason the window size is
no longer being transferred via an OOB message on the socket.
This change fixes my problem and seems to be a good stopgap measure until
someone has time to ktrace/ktrace -i inetd to catch all the child processes
it spawns while doing an rlogin and change window size a few times to see
how far the change messages are getting.
c360204b70