Tweaked rcvtty.c to squelch warnings on OpenBSD.  Three of the four were due to unused artifacts with HAVE_GETUTXENT not defined. The fourth was due to control reaching the end of non-void function message_id(), which had an _exit() call at the end.
Tweaked rcvtty.c to squelch warnings on OpenBSD.  Three of the
four were due to unused artifacts with HAVE_GETUTXENT not defined.
The fourth was due to control reaching the end of non-void
function message_id(), which had an _exit() call at the end.

dscho/nmh,mcr/nmh,dscho/nmh,dscho/nmh,mcr/nmh,dscho/nmh