tests: ignore localhost[46] from gethostbyaddr
tests: ignore localhost[46] from gethostbyaddr

Some distributions add 'localhost4' and 'localhost6 aliases to localhost
IPv4 and IPv6 addresses.

crossdistro/netresolve,crossdistro/netresolve,pavlix/netresolve,pavlix/netresolve,crossdistro/netresolve,pavlix/netresolve