Reorganization of VANADIUM_ROOT relative paths.
diff --git a/security/blessingroots_test.go b/security/blessingroots_test.go
index ded6812..49b599f 100644
--- a/security/blessingroots_test.go
+++ b/security/blessingroots_test.go
@@ -6,7 +6,7 @@
 	"os"
 	"testing"
 
-	"v.io/veyron/veyron2/security"
+	"v.io/core/veyron2/security"
 )
 
 type rootsTester [3]security.PublicKey