[tz] Swiss time selectable for Germany

[Philip Paeps]

On 2023-01-07 09:02:17 (+0800), Paul Eggert via tz wrote:
> On 2023-01-06 16:26, Benjamin Drung via tz wrote:
>> We do not use Swiss time in Germany.
>
> I installed the attached to try to make that a bit clearer.

This patch (consistently) misspells "Liechtenstein".  Other than that, 
this seems like a good idea.

Philip

-- 
Philip Paeps
Senior Reality Engineer
Alternative Enterprises