[-] WS : Fix bug from 1.4 Groups for entity customers API

git-svn-id: http://dev.prestashop.com/svn/v1/branches/1.5.x@13517 b9a71923-0436-4b27-9f14-aed3839534dd

classes/Customer.php

@@ -758,7 +758,7 @@ class CustomerCore extends ObjectModel
 				FROM '._DB_PREFIX_.'customer_group cg
 				WHERE cg.`id_customer` = '.(int)$this->id);
 	}
-	
+
 	public function setWsGroups($result)
 	{
 		$groups = array();