Print flow objective error message

Change-Id: Ic4959fc86714b7e6ee7419d05d51bf6ce90fd221
diff --git a/core/net/src/main/java/org/onosproject/net/flowobjective/impl/InOrderFlowObjectiveManager.java b/core/net/src/main/java/org/onosproject/net/flowobjective/impl/InOrderFlowObjectiveManager.java
index 5eb3ac0..3872702 100644
--- a/core/net/src/main/java/org/onosproject/net/flowobjective/impl/InOrderFlowObjectiveManager.java
+++ b/core/net/src/main/java/org/onosproject/net/flowobjective/impl/InOrderFlowObjectiveManager.java
@@ -170,7 +170,7 @@
             }
             @Override
             public void onError(Objective objective, ObjectiveError error) {
-                log.warn("Flow objective onError {}", objective);
+                log.warn("Flow objective onError {}. {}", objective, error);
                 dequeue(deviceId, objective);
                 originalContext.ifPresent(c -> c.onError(objective, error));
             }