Fix a wrong checksum in go sum

Author: hainesc

go.mod

@@ -57,3 +57,5 @@ require (
 	k8s.io/apimachinery v0.0.0-20180228050457-302974c03f7e
 	k8s.io/client-go v7.0.0+incompatible
 )
+
+go 1.13

go.sum

@@ -5,7 +5,7 @@ github.com/containernetworking/cni v0.6.0/go.mod h1:LGwApLUm2FpoOfxTDEeq8T9ipbpZ
 github.com/containernetworking/plugins v0.7.4 h1:ugkuXfg1Pdzm54U5DGMzreYIkZPSCmSq4rm5TIXVICA=
 github.com/containernetworking/plugins v0.7.4/go.mod h1:dagHaAhNjXjT9QYOklkKJDGaQPTg4pf//FrUcJeb7FU=
 github.com/coreos/bbolt v1.3.0/go.mod h1:iRUV2dpdMOn7Bo10OQBFzIJO9kkE559Wcmn+qkEiiKk=
-github.com/coreos/etcd v3.3.9+incompatible h1:/pWnp1yEff0z+vBEOBFLZZ22Ux5xoVozEe7X0VFyRNo=
+github.com/coreos/etcd v3.3.9+incompatible h1:iKSVPXGNGqroBx4+RmUXv8emeU7y+ucRZSzTYgzLZwM=
 github.com/coreos/etcd v3.3.9+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE=
 github.com/coreos/go-iptables v0.4.0 h1:wh4UbVs8DhLUbpyq97GLJDKrQMjEDD63T1xE4CrsKzQ=
 github.com/coreos/go-iptables v0.4.0/go.mod h1:/mVI274lEDI2ns62jHCDnCyBF9Iwsmekav8Dbxlm1MU=