WITHOUT_JAIL and make delete-old{,-libs}

Hello,

I was surprised to see there is no ${MK_JAIL} conditional to remove old 
files on 8.2-RELEASE so I started to write it without watching if 
-CURRENT already make it in 
/usr/src/tools/build/mk/OptionalObsoleteFiles.inc.

.if ${MK_JAIL} == no
OLD_FILES+=usr/sbin/jail
OLD_FILES+=usr/sbin/jexec
OLD_FILES+=usr/sbin/jls
OLD_FILES+=usr/share/man/man8/jail.8.gz
OLD_FILES+=usr/share/man/man8/jexec.8.gz
OLD_FILES+=usr/share/man/man8/jls.8.gz
.endif

I personnaly added more files :

OLD_LIBS+=lib/libjail.so.1
OLD_LIBS+=usr/lib/libjail.a
OLD_LIBS+=usr/lib/libjail_p.a
OLD_FILES+=usr/lib/libjail.so
OLD_FILES+=etc/rc.d/jail

(/usr/lib/libjail.so is a symbolic link)

I think they should be removed too, thus can you merge it to -STABLE if 
it's not already done? (sorry I'm not used to the cvs web interface and 
I don't have -STABLE right now)

Cheers,

-- 
David Demelier