Plan 9 from Bell Labs’s /usr/web/sources/patch/applied/dnsquery-ip6/readme
don't forget about ipv6 when doing reverse queries. at least don't screw up strings like 0.3.0.0.2.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.e.3.a.b.3.0.5.0.1.0.0.2.ip6.arpa
