add linter whitespace and fix linter errors

Signed-off-by: gy95 <guoyao17@huawei.com>

.golangci.yml

@@ -41,9 +41,13 @@ linters:
   - typecheck
   - unused
   - varcheck
+  # other linters supported by golangci-lint.
+  - whitespace
+
 linters-settings:
   goimports:
     local-prefixes: github.com/karmada-io/karmada
+
 issues:
   # The list of ids of default excludes to include or disable. By default it's empty.
   include:

pkg/karmadactl/join.go

@@ -377,7 +377,6 @@ func ensureClusterRoleExist(client kubeclient.Interface, clusterRole *rbacv1.Clu
 	}
 
 	return createdObj, nil
-
 }
 
 // ensureClusterRoleBindingExist makes sure that the specific ClusterRoleBinding exist in cluster.

pkg/util/detector/detector.go

@@ -403,7 +403,6 @@ func (d *ResourceDetector) ApplyClusterPolicy(object *unstructured.Unstructured,
 		} else {
 			klog.V(2).Infof("ResourceBinding(%s) is up to date.", binding.GetName())
 		}
-
 	} else {
 		binding := d.BuildClusterResourceBinding(object, objectKey, policyLabels)
 		bindingCopy := binding.DeepCopy()

pkg/util/helper/binding.go

@@ -156,7 +156,6 @@ func FetchWorkload(dynamicClient dynamic.Interface, restMapper meta.RESTMapper,
 // EnsureWork ensure Work to be created or updated.
 func EnsureWork(c client.Client, workload *unstructured.Unstructured, clusterNames []string, overrideManager overridemanager.OverrideManager,
 	binding metav1.Object, scope apiextensionsv1.ResourceScope) error {
-
 	referenceRSP, desireReplicaInfos, err := calculateReplicasIfNeeded(c, workload, clusterNames)
 	if err != nil {
 		klog.Errorf("Failed to get ReplicaSchedulingPolicy for %s/%s/%s, err is: %v", workload.GetKind(), workload.GetNamespace(), workload.GetName(), err)