unify worker num to workers

Kubernetes-commit: e6df935fd30c56a8ece0da6152c60fc725d942b7

controller.go

@@ -148,7 +148,7 @@ func NewController(
 // as syncing informer caches and starting workers. It will block until stopCh
 // is closed, at which point it will shutdown the workqueue and wait for
 // workers to finish processing their current work items.
-func (c *Controller) Run(threadiness int, stopCh <-chan struct{}) error {
+func (c *Controller) Run(workers int, stopCh <-chan struct{}) error {
 	defer utilruntime.HandleCrash()
 	defer c.workqueue.ShutDown()
 
@@ -163,7 +163,7 @@ func (c *Controller) Run(threadiness int, stopCh <-chan struct{}) error {
 
 	klog.Info("Starting workers")
 	// Launch two workers to process Foo resources
-	for i := 0; i < threadiness; i++ {
+	for i := 0; i < workers; i++ {
 		go wait.Until(c.runWorker, time.Second, stopCh)
 	}