/usr/share/cups/locale/ is in cups-common 1.5.2-9ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/cups/locale/da/
/usr/share/cups/locale/da/cups_da.po
/usr/share/cups/locale/de/
/usr/share/cups/locale/de/cups_de.po
/usr/share/cups/locale/es/
/usr/share/cups/locale/es/cups_es.po
/usr/share/cups/locale/eu/
/usr/share/cups/locale/eu/cups_eu.po
/usr/share/cups/locale/fi/
/usr/share/cups/locale/fi/cups_fi.po
/usr/share/cups/locale/fr/
/usr/share/cups/locale/fr/cups_fr.po
/usr/share/cups/locale/hu/
/usr/share/cups/locale/hu/cups_hu.po
/usr/share/cups/locale/id/
/usr/share/cups/locale/id/cups_id.po
/usr/share/cups/locale/it/
/usr/share/cups/locale/it/cups_it.po
/usr/share/cups/locale/ja/
/usr/share/cups/locale/ja/cups_ja.po
/usr/share/cups/locale/ko/
/usr/share/cups/locale/ko/cups_ko.po
/usr/share/cups/locale/nl/
/usr/share/cups/locale/nl/cups_nl.po
/usr/share/cups/locale/no/
/usr/share/cups/locale/no/cups_no.po
/usr/share/cups/locale/pl/
/usr/share/cups/locale/pl/cups_pl.po
/usr/share/cups/locale/pt/
/usr/share/cups/locale/pt/cups_pt.po
/usr/share/cups/locale/pt_BR/
/usr/share/cups/locale/pt_BR/cups_pt_BR.po
/usr/share/cups/locale/ru/
/usr/share/cups/locale/ru/cups_ru.po
/usr/share/cups/locale/sv/
/usr/share/cups/locale/sv/cups_sv.po
/usr/share/cups/locale/zh/
/usr/share/cups/locale/zh/cups_zh.po
/usr/share/cups/locale/zh_TW/
/usr/share/cups/locale/zh_TW/cups_zh_TW.po