Quite a while back KTH (who are the good folks who wrote our KerberosIV)
announced a K4 weakness with their rsh/rlogins. We were not put in any
danger by this, as we were not using KTH rlogin/rsh, but the patches
in themselves, had some good points. This lot means we can run our
rlogin without it being SUID root. Win win win. There are other KTH
cleanups as well.