Added transaction ID to transaction.finnished error message

lib/sequelize.js

@@ -733,7 +733,7 @@ module.exports = (function() {
     }
     }
 
 
     if (options.transaction && options.transaction.finished) {
     if (options.transaction && options.transaction.finished) {
-      return Promise.reject(options.transaction.finished+' has been called on this transaction, you can no longer use it');
+      return Promise.reject(options.transaction.finished+' has been called on this transaction('+options.transaction.id+'), you can no longer use it');
     }
     }
 
 
     if (this.test.$trackRunningQueries) {
     if (this.test.$trackRunningQueries) {