8886 mdns: update to mDNSResponder-878.1.1Reviewed by: Gergő Mihály Doma <domag02@gmail.com>Reviewed by: Andy Fiddaman <af@citrus-it.net>Approved by: Robert Mustacchi <rm@joyent.com>
PSARC 2005/562 Multicast DNS and Service Discovery6550311 Multicast DNS and service discovery support