br ? Breton ? 프랑스 ?

https://www.debian.org/international/l10n/po/index.ko.html
says
br — 프랑스어
But br is not 프랑스

https://www.debian.org/international/l10n/po/index.en.html
says
br — Breton

So I want to change
br — 프랑스어
to
br — 브레튼
in https://www.debian.org/international/l10n/po/index.ko.html

What file should I change ?

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