The country suffix should only be present when the language only is not sufficient (e.g. pt_BR.po is used to differentiate Portuguese from Brazil and Portuguese from Portugal.) But for most languages, this is not useful at all and can sometimes prevent some users from seeing the translations (e.g. de_CH should also be able to access German (de.po) translations).
The country suffix should only be present when the language only is not sufficient (e.g. pt_BR.po is used to differentiate Portuguese from Brazil and Portuguese from Portugal.) But for most languages, this is not useful at all and can sometimes prevent some users from seeing the translations (e.g. de_CH should also be able to access German (de.po) translations).