Rackspace Auto Scale: Add webhooks Update()
diff --git a/rackspace/autoscale/v1/webhooks/results.go b/rackspace/autoscale/v1/webhooks/results.go
index 0fa550e..9628724 100644
--- a/rackspace/autoscale/v1/webhooks/results.go
+++ b/rackspace/autoscale/v1/webhooks/results.go
@@ -34,11 +34,6 @@
 	pagination.SinglePageBase
 }
 
-// GetResult temporarily contains the response from a Get call.
-type GetResult struct {
-	webhookResult
-}
-
 // ExtractWebhooks extracts a slice of Webhooks from a CreateResult.
 func (res CreateResult) ExtractWebhooks() ([]Webhook, error) {
 	if res.Err != nil {
@@ -48,6 +43,16 @@
 	return commonExtractWebhooks(res.Body)
 }
 
+// GetResult temporarily contains the response from a Get call.
+type GetResult struct {
+	webhookResult
+}
+
+// UpdateResult represents the result of an update operation.
+type UpdateResult struct {
+	gophercloud.ErrResult
+}
+
 // Webhook represents a webhook associted with a scaling policy.
 type Webhook struct {
 	// UUID for the webhook.