[tz] [PROPOSED 2/2] Simplify three Ukraine zones to one

[Philip Paeps]

On 2022-08-28 04:36:55 (+0800), Paul Eggert via tz wrote:
> * backward: New backward-compatibility links for the moved zones.
> * backzone (Europe/Uzhgorod, Europe/Zaporozhye): Move zones here ...
> * europe: ... from here.
> * zone.tab, zone1970.tab (Europe/Uzhgorod, Europe/Zaporozhye):
> Remove.

Considering how unreliable a source Shanks & Pottenger is known to be, 
this change is probably correct.  However, it would be good to list at 
least one of the mentioned "contemporaneous government resolutions" in 
each of these comments.

> +# Although Shanks & Pottenger say Transcarpathia used CET 1990/1991,
> +# this unreliable source contradicts contemporaneous government 
> resolutions
> +# so for now this dubious zone is in 'backzone'.
> [...]
> +# Although Shanks & Pottenger say Zaporizhzhia and eastern Lugansk
> +# observed DST 1990/1991, this unreliable source contradicts 
> contemporaneous
> +# government resolutions so for now this dubious zone is in 
> 'backzone'.
>
> [...]
>
>  UA	+5026+03031	Europe/Kyiv	Ukraine (most areas)
> -UA	+4837+02218	Europe/Uzhgorod	Transcarpathia
> -UA	+4750+03510	Europe/Zaporozhye	Zaporozhye and east Lugansk

The " (most areas)" tag is obsolete after this change.

> [...]
>  UA	+5026+03031	Europe/Kyiv	Ukraine (most areas)
> -UA	+4837+02218	Europe/Uzhgorod	Transcarpathia
> -UA	+4750+03510	Europe/Zaporozhye	Zaporozhye and east Lugansk

Same here.

Philip

-- 
Philip Paeps
Senior Reality Engineer
Alternative Enterprises