[9.2-RC2] Error while loading Email followups configuration

[ejaecker]

Updated from 9.1.6 to 9.2RC2

Go to Setup/Notification/Email followup configuration and got that message :

Here is PHP Log :

PHP Fatal error:  Uncaught Error: Call to undefined function _() in C:\glpi-dev\inc\notificationmailingsetting.class.php:117
Stack trace:
#0 C:\glpi-dev\inc\notificationsetting.class.php(103): NotificationMailingSetting->showFormConfig()
#1 C:\glpi-dev\inc\commonglpi.class.php(482): NotificationSetting::displayTabContentForItem(Object(NotificationMailingSetting), '1', '')
#2 C:\glpi-dev\ajax\common.tabs.php(96): CommonGLPI::displayStandardTab(Object(NotificationMailingSetting), 'NotificationMai...', '', Array)
#3 {main}
  thrown in C:\glpi-dev\inc\notificationmailingsetting.class.php on line 117

[trasher]

It's been fixed in the 9.2 branch in PR #2795