kic: Fix service warn message on docker/osx

cmd/minikube/cmd/service.go

@@ -146,6 +146,7 @@ func startKicServiceTunnel(svc, configName string) {
 	service.PrintServiceList(os.Stdout, data)
 
 	openURLs(svc, urls)
+	out.T(out.WarningType, "Because you are using docker driver on Mac, the terminal needs to be open to run it.")
 
 	<-ctrlC
 
@@ -173,8 +174,5 @@ func openURLs(svc string, urls []string) {
 		if err := browser.OpenURL(u); err != nil {
 			exit.WithError(fmt.Sprintf("open url failed: %s", u), err)
 		}
-
-		out.T(out.WarningType, "Because you are using docker driver on Mac, the terminal needs to be open to run it.")
 	}
-
 }