containerd-shim: Refuse connection from uid/gid different from the shim process

Signed-off-by: Kenfe-Mickael Laventure <mickael.laventure@gmail.com>

cmd/containerd-shim/main_unix.go

@@ -47,7 +47,7 @@ func main() {
 		},
 		cli.StringFlag{
 			Name:  "socket,s",
-			Usage: "abstract socket path to server on",
+			Usage: "abstract socket path to serve on",
 		},
 	}
 	app.Before = func(context *cli.Context) error {