dont load default vals from env (#751)
dont load default vals from env (#751)


yongtang/coredns,johnbelamaric/coredns,miekg/coredns,ii/coredns,chrisohaver/coredns,ii/coredns,miekg/coredns,coredns/coredns,varyoo/coredns,jremond/coredns,johnbelamaric/coredns,jremond/coredns