proposed tz patches for Cuba, Georgia, Mato Grosso

[Rodrigo Severo]

Paul Eggert wrote:

> * The legal date of the change in Mato Grosso this year was Oct 1, not Oct 4.
>
You are right.

I sent the patch with the wrong info. I used the decree's publication 
date instead of the decree's date. My mistake.


Rodrigo