syslog connections unless they were rejected. This helps save wear and
tear on the syslog facility in large networks with many clienst systems.
yp_svc.c: Be a little smarter about using sigaction() -- set the SA_RESTART
flag.
svc_run: Be doubly paranoid about killing off child processes. Do a flag
chack and a pid check before letting child 'threads' self-destruct.