uu-date does not follow LC_TIME

[2xsaiko]

uu-date always prints the (default) %c format like this, regardless of the LC_TIME setting:

% LC_TIME=en_DK.utf8 uu-date
Tue Feb 15 13:03:36 2022

Expected (output from GNU coreutils date):

% LC_TIME=en_DK.utf8 date
2022-02-15T13:03:36 CET

Tested on uutils 0.0.12 under Gentoo.

[pawelngei]

If I'm correct, this is blocked by us using chrono to display the date. The localization of that crate is still unstable an incomplete, requiring a unstable-locales flag.