[tz] Estimate for a new tzdb release with Brazil rules.

[Robert Elz]

    Date:        Mon, 13 May 2019 23:52:43 -0700
    From:        Paul Eggert <eggert at cs.ucla.edu>
    Message-ID:  <89f9d06f-7cfc-0fea-e503-db89d795a693 at cs.ucla.edu>


  | There shouldn't be that much trouble testing and/or using [...]

When I once thought I might try that, I got told "git: command not found"

I have no interest whatever in installing that thing, just for this.

kre