https://svn.wikimedia.org/viewvc/mediawiki/branches/wmf/1.17wmf1/extensions/ArticleFeedback/ArticleFeedback.i18n.php?view=markup#l31 has a typo: "occured" instead of "occurred". It is visible on all production WMF wikis whenever an error occurs. You know what to do...
Version: unspecified
Severity: minor