Update adapter.go

custom-metrics-stackdriver-adapter/adapter.go

@@ -117,6 +117,7 @@ func (sa *StackdriverAdapter) makeProviderOrDie(o *stackdriverAdapterServerOptio
 	// If ListFullCustomMetrics is false, it returns one resource during api discovery `kubectl get --raw "/apis/custom.metrics.k8s.io/v1beta2"` to reduce memory usage.
 	stackdriverRequest := translator.ListMetricDescriptors(o.FallbackForContainerMetrics)
 	response, err := stackdriverRequest.Do()
+	// It exits early when failed to request metrics from stackdriver api.
 	if err != nil {
 		klog.Fatalf("Failed request to stackdriver api: %s", err)
 	}