Bug#938327: Upstream references

[Moritz Mühlenhoff]

On Sun, Dec 15, 2019 at 02:01:30PM +0000, Jelmer Vernooij wrote:
> FWIW Upstream is working on Python 3 support here: 
> https://github.com/rabbitvcs/rabbitvcs/issues/279

Hi Ritesh,
this is fixed in 0.18, could you please update the package? rabbitcvs is among
the last handful of packages blocking the pygtk removal at this point.

Cheers,
        Moritz