Update unbound.conf.erb to squash warnings on puppet 3.1
Update unbound.conf.erb to squash warnings on puppet 3.1

rswarts/puppet-unbound,twc-openstack/puppet-unbound,mmickan/puppet-unbound,xaque208/puppet-unbound,icann-dns/puppet-unbound,icann-dns/puppet-unbound,twc-openstack/puppet-unbound,mmickan/puppet-unbound,icann-dns/puppet-unbound,xaque208/puppet-unbound,rswarts/puppet-unbound,xaque208/puppet-unbound