pt-br availability in Language drop-down

I noticed that only Portuguese(pt) not Brazilian Portuguese(pt-br) is available in Language settings. Could pt-br be included? For the moment i'll try a symlink from pt-br to pt and see how it goes

i refactored languages vocabulary, now it should show all languages

Thanks for the quick fix

To make sure I understood correctly, is there any other change to buildout.cfg besides updating extends line to:

extends = http://download.zope.org/zope3.4/3.4.0/versions.cfg
          http://download.z3ext.net/versions.cfg

yes, 'extends' is all you need update