Log Message:
Disable code which creates a race condition exclusively for the benefit of
GPM (which we do not support) and its lovely signal handler.

See my comment in main.c for more information.  This fixes the extremely
annoying behavior I've been noticing on NetBSD-current where links seems to
send a SIGSTP to any jobs attempting to use its terminal after it received
a SIGSTP.

Bump rev.