[tz] Inconsistencies between backward and backzone

[Benjamin Drung]

On Tue, 2023-05-02 at 14:18 -0700, Paul Eggert wrote:
> On 5/2/23 07:48, Benjamin Drung via tz wrote:
> > First investigation indicate that the timezones in backzone did not get
> > the recent updates applied to them.
> 
> The Makefile says to use PACKRATDATA=backzone only if "out-of-scope and 
> often-wrong data" are wanted, so those issues are as advertised. Please 
> feel free to suggest specific fixes to backzone, using "git 
> format-patch" to format the patches so that they can be applied easily. 
> Another possibility is to not use PACKRATDATA=backzone, as it is not 
> well maintained and surely has other problems.

While looking at the code, I noticed that building with
PACKRATLIST=zone.tab in addition to PACKRATDATA=backzone should be a
good compromise. Then all those inconsistencies will be resolved, but
Asia/Hanoi will be gone. Is it okay to add Asia/Hanoi to zone.tab (see
git patch attached).

-- 
Benjamin Drung
Debian & Ubuntu Developer
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