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

[Alois Treindl]

On 12.02.21 20:31, Paul Gilmartin via tz wrote:
> 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.
>
Nobody should worry about these 30%, I think, these days.

A lot more of space is wasted, everywhere.

On my Mac (Catalina) I find at least three full copies of tzdb
ls -l /var/db/timezone/tz
drwxr-xr-x  5 root  wheel  160 27 Okt 03:33 2020d.1.0
drwxr-xr-x  5 root  wheel  160 31 Jan 04:26 2020f.1.0
drwxr-xr-x  5 root  wheel  160  2 Feb 04:27 2021a.1.0

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