update corefile-migration library to 1.0.6

Author: rajansandeep

go.mod

@@ -37,7 +37,7 @@ require (
 	github.com/containerd/containerd v1.0.2 // indirect
 	github.com/containerd/typeurl v0.0.0-20190228175220-2a93cfde8c20 // indirect
 	github.com/containernetworking/cni v0.7.1
-	github.com/coredns/corefile-migration v1.0.4
+	github.com/coredns/corefile-migration v1.0.6
 	github.com/coreos/go-systemd v0.0.0-20190321100706-95778dfbb74e
 	github.com/coreos/pkg v0.0.0-20180108230652-97fdf19511ea
 	github.com/cpuguy83/go-md2man v1.0.10
@@ -232,7 +232,7 @@ replace (
 	github.com/containerd/containerd => github.com/containerd/containerd v1.0.2
 	github.com/containerd/typeurl => github.com/containerd/typeurl v0.0.0-20190228175220-2a93cfde8c20
 	github.com/containernetworking/cni => github.com/containernetworking/cni v0.7.1
-	github.com/coredns/corefile-migration => github.com/coredns/corefile-migration v1.0.4
+	github.com/coredns/corefile-migration => github.com/coredns/corefile-migration v1.0.6
 	github.com/coreos/etcd => github.com/coreos/etcd v3.3.10+incompatible
 	github.com/coreos/go-etcd => github.com/coreos/go-etcd v2.0.0+incompatible
 	github.com/coreos/go-oidc => github.com/coreos/go-oidc v2.1.0+incompatible

go.sum

@@ -106,8 +106,8 @@ github.com/containerd/typeurl v0.0.0-20190228175220-2a93cfde8c20 h1:14r0i3IeJj6z
 github.com/containerd/typeurl v0.0.0-20190228175220-2a93cfde8c20/go.mod h1:Cm3kwCdlkCfMSHURc+r6fwoGH6/F1hH3S4sg0rLFWPc=
 github.com/containernetworking/cni v0.7.1 h1:fE3r16wpSEyaqY4Z4oFrLMmIGfBYIKpPrHK31EJ9FzE=
 github.com/containernetworking/cni v0.7.1/go.mod h1:LGwApLUm2FpoOfxTDEeq8T9ipbpZ61X79hmU3w8FmsY=
-github.com/coredns/corefile-migration v1.0.4 h1:GpAwsgzgLA9HOnt3+Z69xsMVLl0doNnyVfBX79d/P5A=
-github.com/coredns/corefile-migration v1.0.4/go.mod h1:OFwBp/Wc9dJt5cAZzHWMNhK1r5L0p0jDwIBc6j8NC8E=
+github.com/coredns/corefile-migration v1.0.6 h1:hB6vclp2g/KeXe9n1oz/PafgieUahsOYeHMQA+RJ4Hg=
+github.com/coredns/corefile-migration v1.0.6/go.mod h1:OFwBp/Wc9dJt5cAZzHWMNhK1r5L0p0jDwIBc6j8NC8E=
 github.com/coreos/etcd v3.3.10+incompatible h1:jFneRYjIvLMLhDLCzuTuU4rSJUjRplcJQ7pD7MnhC04=
 github.com/coreos/etcd v3.3.10+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE=
 github.com/coreos/go-etcd v2.0.0+incompatible/go.mod h1:Jez6KQU2B/sWsbdaef3ED8NzMklzPG4d5KIOhIy30Tk=