make xml abstracts, stubs and page log dumps work again

Broken in I979b6c8f0a72bc1f5ecce1d499d3fdfa0f671588

Bug: T174031
Change-Id: I494fe7578f936a2316c27f9c419e981055c38ed4

diff --git a/maintenance/includes/BackupDumper.php b/maintenance/includes/BackupDumper.php
index 3ae7f48..f4d4d50 100644 (file)
--- a/maintenance/includes/BackupDumper.php
+++ b/maintenance/includes/BackupDumper.php
@@ -26,6 +26,7 @@
  */
 
 require_once __DIR__ . '/../Maintenance.php';
+require_once __DIR__ . '/../../includes/export/WikiExporter.php';
 
 use MediaWiki\MediaWikiServices;
 use Wikimedia\Rdbms\LoadBalancer;