Man pages matching name olduname in section 2:

olduname.2.de	debian 10 / manpages-de-dev
olduname.2.en	debian 10 / manpages-dev
olduname.2.es	debian 10 / manpages-es
olduname.2.ja	debian 10 / manpages-ja-dev
olduname.2.de	debian 11 / manpages-de-dev
olduname.2.en	debian 11 / manpages-dev
olduname.2.es	debian 11 / manpages-es-dev
olduname.2.fr	debian 11 / manpages-fr-dev
olduname.2.it	debian 11 / manpages-it-dev
olduname.2.ja	debian 11 / manpages-ja-dev
olduname.2.de	debian 12 / manpages-de-dev
olduname.2.en	debian 12 / manpages-dev
olduname.2.es	debian 12 / manpages-es-dev
olduname.2.fr	debian 12 / manpages-fr-dev
olduname.2.it	debian 12 / manpages-it-dev
olduname.2.ja	debian 12 / manpages-ja-dev
olduname.2.ru	debian 12 / manpages-ru-dev