remove bzero usage (portability).
remove bzero usage (portability).

dkg/getdns,glenwiley/getdns,smogali/getdns,smogali/getdns,dkg/getdns,shane-kerr/getdns,shane-kerr/getdns,huitema/getdns,Acidburn0zzz/getdns,shane-kerr/getdns,smogali/getdns,Acidburn0zzz/getdns,glenwiley/getdns,glenwiley/getdns,huitema/getdns,Acidburn0zzz/getdns,huitema/getdns,dkg/getdns,shane-kerr/getdns,huitema/getdns,dkg/getdns,smogali/getdns,Acidburn0zzz/getdns,glenwiley/getdns