Merge pull request #1911 from k8s-infra-cherrypick-robot/cherry-pick-1907-to-release-0.12

🐛 don't override global log in builder

Author: k8s-ci-robot

pkg/builder/controller.go

@@ -309,7 +309,7 @@ func (blder *Builder) doController(r reconcile.Reconciler) error {
 
 	// Setup the logger.
 	if ctrlOptions.LogConstructor == nil {
-		log = blder.mgr.GetLogger().WithValues(
+		log := blder.mgr.GetLogger().WithValues(
 			"controller", controllerName,
 			"controllerGroup", gvk.Group,
 			"controllerKind", gvk.Kind,