[tz] [PROPOSED PATCH 2/2] Use lz format for new tarball

[Paul Eggert]

Antonio Diaz Diaz wrote:
> Please, do not use xz for a new distribution format.

I'm not much of a fan of xz format either, which is why I suggested lz format 
originally, and we could easily change it back to lz. However, Oscar van Vlijmen 
asked for something convenient on MS-Windows; see 
<http://mm.icann.org/pipermail/tz/2016-August/023945.html>. What's the story on 
that? Why doesn't 7-Zip support lz format? Will 7-Zip support lz format any time 
soon? Surely it would be an easy thing to add.

I'd rather not use bzip2 format, since it doesn't compress the tz tarball nearly 
as well. bzip2 format is 11% larger than xz format.  (lz format is 0.3% smaller.)