[tz] Gripe about compressed rule set names in tzdata.zi

[Tom Lane]

Paul Eggert <eggert at cs.ucla.edu> writes:
> Tom Lane wrote:
>> I doubt we'd do better with a different hash.

> We can do a bit better; the attached patches uses a hash that shrinks the size 
> of tzdata.zi by about 0.5% compared to the method used in 2018e. This hash 
> should also avoid needless churn during updates.

Looks nice --- obviously, this is more work than what I did, but it seems
sensible, and not likely to be an undue pain to maintain.

I think 0004 is a bit of a kluge though ...

			regards, tom lane