ONOS-3200 unify code formation and fix grammar problem

Change-Id: Ieacdfc042e1055713f4502416542055cee8fa97b

@@ -21,7 +21,7 @@ import org.onlab.packet.IpAddress;
 import org.onlab.packet.MacAddress;
 
 /**
- * Represents for a entity that carry important information for listener.
+ * Represents for an entity that carry important information for listener.
  */
 public interface OvsdbEventSubject extends EventSubject {
     /**

@@ -20,13 +20,14 @@ import static com.google.common.base.Preconditions.checkNotNull;
 import java.util.Objects;
 
 /**
- * The class representing a ifaceid. This class is immutable.
+ * The class representing an ifaceid.
+ * This class is immutable.
  */
 public class OvsdbIfaceId {
     private final String value;
 
     /**
-     * Constructor from a String ifaceid.
+     * Constructor from a String.
      *
      * @param value the ifaceid to use
      */
@@ -36,9 +37,9 @@ public class OvsdbIfaceId {
     }
 
     /**
-     * Gets the value of the ifaceid.
+     * Gets the value of ifaceid.
      *
-     * @return the value of the ifaceid
+     * @return the value of ifaceid
      */
     public String value() {
         return value;