usr.sbin: enable lint for all programs

Define _KERNTYPES for things that need it.

Enable WARNS=4 by default, except for:
cpuctl dumplfs hprop ipf iprop-log kadmin kcm kdc kdigest
kimpersonate kstash ktutil makefs ndbootd ntp pppd quot
racoon racoonctl rtadvd s

Enable WARNS=4 by default, except for:
cpuctl dumplfs hprop ipf iprop-log kadmin kcm kdc kdigest
kimpersonate kstash ktutil makefs ndbootd ntp pppd quot
racoon racoonctl rtadvd sntp sup tcpdchk tcpdmatch tcpdump
traceroute traceroute6 user veriexecgen wsmoused zic
(Mostly third-party applications)

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enable WARNS=1 by default, but disable in unclean 3rd party code

merge lite-2 rcsids

rcsid facism

Add RCS identifiers.

4.4BSD-Lite2

initial import of 386bsd-0.1 sources