[tz] "official" zone name alternatives via Link records

[Paul Gilmartin]

On 2021-02-12, at 07:32:50, Alois Treindl wrote:
> 
> I think everybody could be satisfied by a small semantic redefinition of the meaning of Link records.
> 
> The current practice seems to be:
> 
> 1. Link records in the main files indicate that a given zone's data are also used for an area in another country.
>  
I notice, FWIW, that the MacOS distribution (at Mojave) contains no
symlinks; the files are entirely replicated.  This needlessly expands
the DB by about 30% (MacOS nicely supports symlinks) and actually
removes information.  The casual browser can not tell at a glance that
files are duplicated.

-- gil