Fix for image servcie v2 client

Change-Id: Ic316efe884ed7640c460d3e71024f06729a3880e
diff --git a/openstack/imageservice/v2/images/urls.go b/openstack/imageservice/v2/images/urls.go
index 4c55d34..59b9880 100644
--- a/openstack/imageservice/v2/images/urls.go
+++ b/openstack/imageservice/v2/images/urls.go
@@ -39,6 +39,6 @@
 
 // builds next page full url based on current url
 func nextPageURL(currentURL string, next string) string {
-	base := currentURL[:strings.Index(currentURL, "/images")]
+	base := currentURL[:strings.Index(currentURL, "/v2/images")]
 	return base + next
 }