mdnsd: Disable multicast loop socket option
mdnsd: Disable multicast loop socket option

No point in getting a copy of our own announcements, just inucrs
unnecessary extra processing.

Signed-off-by: Joachim Nilsson <583c295fd7602c168ad814279bbc3894ba65f5d6@gmail.com>

troglobit/mdnsd,troglobit/mdnsd