mw/secondary: more tests in setup_test.go (#1039)
mw/secondary: more tests in setup_test.go (#1039)

Improve the syntax tests for this middleware.
jremond/coredns,miekg/coredns,johnbelamaric/coredns,coredns/coredns,ii/coredns,johnbelamaric/coredns,ii/coredns,chrisohaver/coredns,jremond/coredns,miekg/coredns,yongtang/coredns