fix broken variable reference

app/assets/javascripts/abuse_reports.js

@@ -15,7 +15,7 @@ class AbuseReports {
     if (reportMessage.length > MAX_MESSAGE_LENGTH) {
       $messageCellElement.data('original-message', reportMessage);
       $messageCellElement.data('message-truncated', 'true');
-      $messageCellElement.text(global.text.truncate(reportMessage, MAX_MESSAGE_LENGTH));
+      $messageCellElement.text(window.gl.text.truncate(reportMessage, MAX_MESSAGE_LENGTH));
     }
   }