[tz] Proposed reversions, for moving forward

[Alan Barrett]

On Fri, 08 Aug 2014, Tim Parenti wrote:
>On 6 August 2014 14:32, Paul Eggert <eggert at cs.ucla.edu> wrote:
>> Those changes mostly remove dubious data, rather than replacing 
>> one dubious datum with another.
>
> I believe the relevant point made by objectors here is that, by 
> doing anything other than deleting the identifiers altogether, 
> there is no such thing as "removing" data from an end user's 
> perspective, again, because the format minimally requires that 
> something be there.

This point bears repeating.  Removing a line from the zic input might
appear to be removing dubious data, but from another viewpoint it's
changing, not removing, the results you get from converting timestanps
back and forth between UTC and local time.

--apb (Alan Barrett)