CLOUDSTACK-4317 make the regular expressions in dnsmasq.sh more tighter to avoid matching of ip6dns
CLOUDSTACK-4317 make the regular expressions in dnsmasq.sh more tighter to avoid matching of ip6dns

Signed-off-by: Jayapal <3dd99cedb005ba0ba2ffa0a8e0b7d6c2a0dc8c14@apache.org>

jcshen007/cloudstack,DaanHoogland/cloudstack,DaanHoogland/cloudstack,wido/cloudstack,resmo/cloudstack,wido/cloudstack,GabrielBrascher/cloudstack,jcshen007/cloudstack,wido/cloudstack,wido/cloudstack,GabrielBrascher/cloudstack,jcshen007/cloudstack,resmo/cloudstack,resmo/cloudstack,resmo/cloudstack,DaanHoogland/cloudstack,GabrielBrascher/cloudstack,resmo/cloudstack,wido/cloudstack,jcshen007/cloudstack,GabrielBrascher/cloudstack,GabrielBrascher/cloudstack,GabrielBrascher/cloudstack,DaanHoogland/cloudstack,jcshen007/cloudstack,DaanHoogland/cloudstack,resmo/cloudstack,GabrielBrascher/cloudstack,DaanHoogland/cloudstack,jcshen007/cloudstack,DaanHoogland/cloudstack,resmo/cloudstack,wido/cloudstack,wido/cloudstack,jcshen007/cloudstack