Edit the file as follows
// Import old changelog (if needed)
// Uses the imporoldchangelog plugin to upgrade the changelog automaticaly.
// FIXME: Remove this from runTrimRecentChanges when it is no longer needed.
if (isset($conf['changelog_old']) &&
@file_exists($conf['changelog_old']) && !@file_exists($conf['changelog']) &&
!@file_exists($conf['changelog'].'_importing') && !@file_exists($conf['changelog'].'_tmp')) {
$tmp = array(); // no event data
trigger_event('TEMPORARY_CHANGELOG_UPGRADE_EVENT', $tmp);
return true;
}
+ trigger_event('TEMPORARY_CHANGELOG_UPGRADE_EVENT', $tmp);
+ return true;