tag names in admin history search were not being displayed using rander_tag_name event

git-svn-id: http://piwigo.org/svn/trunk@21894 68402e56-0260-453c-a942-63ccdbb3a9ee

admin/history.php

@@ -396,7 +396,7 @@ SELECT
     {
       $tags_string = preg_replace(
         '/(\d+)/e',
-        'isset($name_of_tag["$1"]) ? $name_of_tag["$1"] : "$1"',
+        'isset($name_of_tag["$1"]) ? trigger_event("render_tag_name", $name_of_tag["$1"]) : "$1"',
         str_replace(
           ',',
           ', ',