[Mediawiki-i18n] Incorrect Plural in 'categories' Message

[Александр Сигачёв]

> This message is used as title of Special:Categories where second form
> must be used. Belarusian/Russain plural function without arguments
> will return 3 incorrect argument: Катэгорый/Категорий.

You can translate the message as
{{PLURAL:$1|Катэгорыя|Катэгорыі|Катэгорыі}}

This solution will work correct while number of categories <= 20

--
Alexander Sigachov