In brazilian portuguese (pt-br), admin-plugin page, the link for
http://www.dokuwiki.org/plugins is wrong.
The correct direction for /lib/plugins/plugin/lang/pt-br/admin_plugin.txt is [[doku>plugins|plug-ins]], not [[doku>plug-ins|plug-ins]].
The correct file is attached (note: put in /lib/plugins/plugin/lang/pt-br/)