fix comment about PodAffinityTerm in api

pkg/apis/core/types.go

@@ -2338,13 +2338,13 @@ type PodAffinityTerm struct {
 	LabelSelector *metav1.LabelSelector
 	// namespaces specifies which namespaces the labelSelector applies to (matches against);
 	// null or empty list means "this pod's namespace"
+	// +optional
 	Namespaces []string
 	// This pod should be co-located (affinity) or not co-located (anti-affinity) with the pods matching
 	// the labelSelector in the specified namespaces, where co-located is defined as running on a node
 	// whose value of the label with key topologyKey matches that of any node on which any of the
 	// selected pods is running.
 	// Empty topologyKey is not allowed.
-	// +optional
 	TopologyKey string
 }
 

staging/src/k8s.io/api/core/v1/generated.proto

@@ -2620,6 +2620,7 @@ message PodAffinityTerm {
 
   // namespaces specifies which namespaces the labelSelector applies to (matches against);
   // null or empty list means "this pod's namespace"
+  // +optional
   repeated string namespaces = 2;
 
   // This pod should be co-located (affinity) or not co-located (anti-affinity) with the pods matching

staging/src/k8s.io/api/core/v1/types.go

@@ -2587,6 +2587,7 @@ type PodAffinityTerm struct {
 	LabelSelector *metav1.LabelSelector `json:"labelSelector,omitempty" protobuf:"bytes,1,opt,name=labelSelector"`
 	// namespaces specifies which namespaces the labelSelector applies to (matches against);
 	// null or empty list means "this pod's namespace"
+	// +optional
 	Namespaces []string `json:"namespaces,omitempty" protobuf:"bytes,2,rep,name=namespaces"`
 	// This pod should be co-located (affinity) or not co-located (anti-affinity) with the pods matching
 	// the labelSelector in the specified namespaces, where co-located is defined as running on a node