Fixed syntax error being thrown by Chrome.

Author: judgej

jquery.maxsubmit.js

@@ -2,7 +2,7 @@
  * Copyright 2013-2014 Academe Computing Ltd
  * Released under the MIT license
  * Author: Jason Judge <[email protected]>
- * Version: 1.1.0
+ * Version: 1.1.1
  */
 /**
  * jquery.maxsubmit.js
@@ -41,7 +41,8 @@
 				// The function that will display the confirm message.
 				// Replace this with something fancy such as jquery.ui if you wish.
 
-				confirm_display: function(form_count = '') {
+				confirm_display: function(form_count) {
+					if (typeof(form_count) === 'undefined') form_count = '';
 					return confirm(
 						settings
 							.max_exceeded_message