Code comment. Add missing translation keyword

htdocs/langs/en_US/cashdesk.lang

@@ -12,7 +12,6 @@ CashDeskOn=on
 CashDeskThirdParty=Third party
 ShoppingCart=Shopping cart
 NewSell=New sell
-BackOffice=Back office
 AddThisArticle=Add this article
 RestartSelling=Go back on sell
 SellFinished=Sell finished

htdocs/langs/en_US/main.lang

@@ -701,6 +701,8 @@ RelatedObjects=Related Objects
 ClassifyBilled=Classify billed
 Progress=Progress
 ClickHere=Click here
+FrontOffice=Front office
+BackOffice=Back office
 # Week day
 Monday=Monday
 Tuesday=Tuesday

htdocs/product/stock/class/productlot.class.php

@@ -20,10 +20,9 @@
  */
 
 /**
- * \file    stock/productlot.class.php
+ * \file    product/stock/class/productlot.class.php
  * \ingroup stock
- * \brief   This file is an example for a CRUD class file (Create/Read/Update/Delete)
- *          Put some comments here
+ * \brief   This is CRUD class file to manage table productlot (Create/Read/Update/Delete)
  */
 
 // Put here all includes required by your class file
@@ -32,10 +31,7 @@ require_once DOL_DOCUMENT_ROOT . '/core/class/commonobject.class.php';
 //require_once DOL_DOCUMENT_ROOT . '/product/class/product.class.php';
 
 /**
- * Class Productlot
- *
- * Put here description of your class
- * @see CommonObject
+ * Class with list of lots and properties
  */
 class Productlot extends CommonObject
 {