Update cantarell font in 16.04 repo

[Jeremy Bicha]

On Tue, Jun 21, 2016 at 2:00 AM, Marius Gedminas <marius at gedmin.as> wrote:
> On Mon, Jun 20, 2016 at 10:39:39AM +0200, Jonatan H. Zeidler wrote:
>> I hope this is the right place for this request. There is an annoying bug in
>> the Ubuntu GNOME default font Cantarell (package fonts-cantarell, version
>> 0.0.21-1) that effects various letters. One of them is the Ü, which is
>> important in German. The issue is solved in the 16.10 repo (0.0.24-1).
>
> The procedure for updating Ubuntu packages in released versions is
> called SRU and is described here: https://wiki.ubuntu.com/StableReleaseUpdates.
>
> It requires boring paperwork (filing bugs on Launchpad, testing updated
> packages), so it's best done by someone who really wants the bug to be
> fixed (e.g. you ;).

The Ubuntu tracking bug is https://launchpad.net/bugs/1592833

It needs to be updated, particularly with a good Test Case, as
mentioned in the Procedure section of the wiki page Marius posted.

Thanks,
Jeremy Bicha