LANG=fi_FI.UTF-8 (default) should be echoed in 91-puavo-setup-locale,
of course.
Put back 60-setup-locale as it was and make 91-puavo-setup-locale
safer so that if it does not have any input, it will not mess up
/etc/default/locale.  This is for extra safety, the 60-setup-locale
should go eventually.