ONOS-3200 unify code formation and fix grammar problem

Change-Id: Ica77f7235a2804a79b0015027bfce1376ca60f8b
diff --git a/ovsdb/api/src/main/java/org/onosproject/ovsdb/controller/EventSubject.java b/ovsdb/api/src/main/java/org/onosproject/ovsdb/controller/EventSubject.java
index 6a06724..d8aaef6 100644
--- a/ovsdb/api/src/main/java/org/onosproject/ovsdb/controller/EventSubject.java
+++ b/ovsdb/api/src/main/java/org/onosproject/ovsdb/controller/EventSubject.java
@@ -16,8 +16,7 @@
 package org.onosproject.ovsdb.controller;
 
 /**
- * Represents for a entity that carry important information for listener.
+ * Representation for an entity that carries important information for a listener.
  */
 public interface EventSubject {
-
 }