Fix verification of boilerplate, style and file headers

internal/ingress/controller/process/nginx.go

@@ -45,6 +45,8 @@ NGINX master process died (%v): %v
 	return true
 }
 
+// WaitUntilPortIsAvailable waits until there is no NGINX master or worker
+// process/es listentning in a particular port.
 func WaitUntilPortIsAvailable(port int) {
 	// we wait until the workers are killed
 	for {