[tz] Merged 1970+ time zones should always return -1 pre-1970

[Derick Rethans]

On Tue, 28 Sep 2021, Paul Eggert via tz wrote:

> On 9/28/21 13:27, Michael H Deckers wrote:

> >  When you merged Africa/Bamako with Africa/Abidjan (in 2014f), you 
> >  also    eradicated for the people of Mali their date of 
> >  independence from France
> 
> Nothing was "eradicated". All that information is still in tzdb.

It might be in tzdb, but it was not distributed by most, if not all, 
Linux/*BSD distributions. Which for the end users effectively means that 
it was eradicated.

cheers,
Derick