bug#69418: test failure when no french locale is installed

[Pádraig Brady]

On 26/02/2024 23:05, Bruno Haible wrote:
> Testing the current coreutils git master:
>
> On a Debian 12 system, in which I have not installed a French UTF-8 locale,
> I see a test failure of tests/misc/join-utf8.
>
> The essential lines from test-suite.log:
>
> + test set = set
> + LC_ALL=none
> ../tests/misc/join-utf8.sh: line 24: warning: setlocale: LC_ALL: cannot change 
> locale (none): No such file or directory
>
> The cause is that on such a system, LOCALE_FR_UTF8, as determined by
> gnulib/m4/locale-fr.m4, is 'none', not empty or absent.
>
> The attached patch fixes the failure.

Applied.

This also indicates that gnulib ensures that LOCALE_FR_UTF8
is set to "none" when not present or usable,
so I've made that simplification in other tests now.

Marking this as done.

thanks!
Pádraig.