Fix doc about Verb for advanced audit feature

staging/src/k8s.io/apiserver/pkg/apis/audit/v1alpha1/types.go

@@ -57,7 +57,7 @@ type Event struct {
 	// RequestURI is the request URI as sent by the client to a server.
 	RequestURI string `json:"requestURI"`
 	// Verb is the kubernetes verb associated with the request.
-	// For non-resource requests, this is identical to HttpMethod.
+	// For non-resource requests, this is the lower-cased HTTP method.
 	Verb string `json:"verb"`
 	// Authenticated user information.
 	User authnv1.UserInfo `json:"user"`