Lowercase first letter of chainable errors in PVC protection controller

Lowercase first letter of error messages that are not printed right
away to ease chaining with other error messages in PVC protection
controller.

Author: matte21

pkg/controller/volume/pvcprotection/pvc_protection_controller.go

@@ -127,7 +127,7 @@ func (c *Controller) processNextWorkItem() bool {
 
 	pvcNamespace, pvcName, err := cache.SplitMetaNamespaceKey(pvcKey.(string))
 	if err != nil {
-		utilruntime.HandleError(fmt.Errorf("Error parsing PVC key %q: %v", pvcKey, err))
+		utilruntime.HandleError(fmt.Errorf("error parsing PVC key %q: %v", pvcKey, err))
 		return true
 	}
 
@@ -233,7 +233,7 @@ func (c *Controller) askInformer(pvc *v1.PersistentVolumeClaim) (bool, error) {
 
 	pods, err := c.podLister.Pods(pvc.Namespace).List(labels.Everything())
 	if err != nil {
-		return false, fmt.Errorf("Cache-based list of pods failed while processing %s/%s: %s", pvc.Namespace, pvc.Name, err.Error())
+		return false, fmt.Errorf("cache-based list of pods failed while processing %s/%s: %s", pvc.Namespace, pvc.Name, err.Error())
 	}
 
 	for _, pod := range pods {
@@ -251,7 +251,7 @@ func (c *Controller) askAPIServer(pvc *v1.PersistentVolumeClaim) (bool, error) {
 
 	podsList, err := c.client.CoreV1().Pods(pvc.Namespace).List(metav1.ListOptions{})
 	if err != nil {
-		return false, fmt.Errorf("Live list of pods failed: %s", err.Error())
+		return false, fmt.Errorf("live list of pods failed: %s", err.Error())
 	}
 
 	for _, pod := range podsList.Items {
@@ -288,7 +288,7 @@ func (c *Controller) pvcAddedUpdated(obj interface{}) {
 	}
 	key, err := cache.MetaNamespaceKeyFunc(pvc)
 	if err != nil {
-		utilruntime.HandleError(fmt.Errorf("Couldn't get key for Persistent Volume Claim %#v: %v", pvc, err))
+		utilruntime.HandleError(fmt.Errorf("couldn't get key for Persistent Volume Claim %#v: %v", pvc, err))
 		return
 	}
 	klog.V(4).Infof("Got event on PVC %s", key)
@@ -322,12 +322,12 @@ func (*Controller) parsePod(obj interface{}) *v1.Pod {
 	if !ok {
 		tombstone, ok := obj.(cache.DeletedFinalStateUnknown)
 		if !ok {
-			utilruntime.HandleError(fmt.Errorf("Couldn't get object from tombstone %#v", obj))
+			utilruntime.HandleError(fmt.Errorf("couldn't get object from tombstone %#v", obj))
 			return nil
 		}
 		pod, ok = tombstone.Obj.(*v1.Pod)
 		if !ok {
-			utilruntime.HandleError(fmt.Errorf("Tombstone contained object that is not a Pod %#v", obj))
+			utilruntime.HandleError(fmt.Errorf("tombstone contained object that is not a Pod %#v", obj))
 			return nil
 		}
 	}