Add lang trans

htdocs/langs/en_US/admin.lang

@@ -1632,6 +1632,7 @@ ExpenseReportsSetup=Setup of module Expense Reports
 TemplatePDFExpenseReports=Document templates to generate expense report document
 ExpenseReportsIkSetup=Setup of module Expense Reports - Milles index
 ExpenseReportsRulesSetup=Setup of module Expense Reports - Rules
+ExpenseReportNumberingModules=Expense reports numbering module
 NoModueToManageStockIncrease=No module able to manage automatic stock increase has been activated. Stock increase will be done on manual input only.
 YouMayFindNotificationsFeaturesIntoModuleNotification=You may find options for EMail notifications by enabling and configuring the module "Notification".
 ListOfNotificationsPerUser=List of notifications per user*