Package: locales Version: 2.13-21 Severity: minor /usr/share/doc/locales/README contains:
To compile the locale data files you simply have to decide which locale (based on the location and the language) and which character set you use. E.g., French speaking Canadians would use the locale `fr_CA' and the character set `ISO_8859-1,1987'.
While French speaking Canadians *may* still use ISO-8859-1, they nowadays may also use, much more likely, Unicode.