Wikimedia Bugzilla is closed!

Please add plural form support for Belarusian language (LanguageBe.php)? Code
below is copied from LanguageRu.php (plural forms are same for Russian and
Belarusian).

I don't sure that this all what I need to add. So please verify and add missing
parts.

function convertPlural( $count, $wordform1, $wordform2, $wordform3) {
	if ($count > 10 && floor(($count % 100) / 10) == 1) {
		return $wordform3;
	}
	else {
       		switch ($count % 10) {
               		case 1: return $wordform1;
               		case 2: return $wordform2;
               		case 3: return $wordform2;
               		case 4: return $wordform2;
			default: return $wordform3;
       		}
	}
}

Test case:

for {{plural:X|артыкул|артыкула|артыкулаў}}

1 артыкул
2 – 4 артыкула
5 – 20 артыкулаў
21 артыкул
22 – 24 артыкула
25 – 30 артыкулаў

and so on...