bug#39970: guix commands broken on Azerbaijani 'az_AZ' and Turkish 'tr_TR' locales

[pelzflorian (Florian Pelz)]

This seems similar to <https://bugs.gnu.org/35785>.  I think
enumerating all characters explicitly is a similar fix, whether or not
there is a bug in Guile.

Regards,
Florian