Support metadata in forwarding objective

Change-Id: Iaa916a8b2749bec6b9db42fe3f3765b922bd921b
diff --git a/core/api/src/main/java/org/onosproject/net/flowobjective/FilteringObjective.java b/core/api/src/main/java/org/onosproject/net/flowobjective/FilteringObjective.java
index d74b082..772eb6d 100644
--- a/core/api/src/main/java/org/onosproject/net/flowobjective/FilteringObjective.java
+++ b/core/api/src/main/java/org/onosproject/net/flowobjective/FilteringObjective.java
@@ -83,7 +83,7 @@
     Collection<Criterion> conditions();
 
     /**
-     * Auxiliary optional information provided to the device-driver.Typically
+     * Auxiliary optional information provided to the device driver. Typically
      * conveys information about changes (treatments) to packets that are
      * permitted into the pipeline by the PERMIT filtering condition.
      *