Metrics lost 'dns' subsystem
Metrics lost 'dns' subsystem

Local variable shadowing in global const. Now subsystem is back to
'dns'.

chrisohaver/coredns,Infoblox-CTO/coredns,jremond/coredns,ii/coredns,jremond/coredns,johnbelamaric/coredns,yongtang/coredns,Infoblox-CTO/coredns,varyoo/coredns,ii/coredns,Infoblox-CTO/coredns,miekg/coredns,miekg/coredns,coredns/coredns,johnbelamaric/coredns