trimmed comment

Author: lychung83

monitoring/exporter/stackdriver/stackdriver.go

@@ -134,8 +134,8 @@ func defaultMakeResource(rd *RowData) (*mrpb.MonitoredResource, error) {
 	return &mrpb.MonitoredResource{Type: "global"}, nil
 }
 
-// Following functions are wrapper of functions that may show non-deterministic behavior. Only tests
-// can modify these functions.
+// Following functions are wrapper of functions those will be mocked by tests. Only tests can modify
+// these functions.
 var (
 	newMetricClient  = monitoring.NewMetricClient
 	createTimeSeries = (*monitoring.MetricClient).CreateTimeSeries