Naming convention change

RestrictContactByName.cls

@@ -1,13 +1,9 @@
 trigger RestrictContactByName on Contact (before insert, before update) {
-
 	//check contacts prior to insert or update for invalid data
-	For (Contact c : Trigger.New) {
-		if(c.LastName == 'INVALIDNAME') {	//invalidname is invalid
-			c.AddError('The Last Name "'+c.LastName+'" is not allowed for DML');
+	For (Contact contactObj : Trigger.New) {
+		//invalidname is invalid
+		if(contactObj.LastName == 'INVALIDNAME') {
+			contactObj.AddError('The Last Name "'+contactObj.LastName+'" is not allowed for DML');
 		}
-
 	}
-
-
-
-}
+}