Update Vendor

(*) github.com/Microsoft/hcsshim
    (*) golang.org/x/sys
    (*) github.com/x/cyrpto
    (*) github.com/sirupsen/logrus
    (*) github.com/Microsoft/go-winio
    (*) github.com/juju/errors
    (*) github.com/buger/jsonparser

vendor/golang.org/x/net/bpf/doc.go

@@ -79,4 +79,4 @@ This packet filter captures a random 1% sample of traffic.
 	})
 
 */
-package bpf // import "golang.org/x/net/bpf"
+package bpf