Add string attributes to self-containd objects. (cont'd)

- Javadoc fix
- Fix duplicate super.equals call.

Change-Id: I7b5e6c90023275e78c248c4606c31ccfc37bebb1
diff --git a/src/main/java/net/onrc/onos/core/topology/LinkEvent.java b/src/main/java/net/onrc/onos/core/topology/LinkEvent.java
index a975e60..01b4efe 100644
--- a/src/main/java/net/onrc/onos/core/topology/LinkEvent.java
+++ b/src/main/java/net/onrc/onos/core/topology/LinkEvent.java
@@ -50,7 +50,7 @@
     }
 
     /**
-     * Create an unfrozen copy of given Object.
+     * Creates an unfrozen copy of given Object.
      *
      * @param original to make copy of.
      */