[tryton-debian] Bug#785566: goocanvas 2.0.3 now in unstable

[Ross Gammon]

Hi Mathias,

Goocanvas 2.0.3 is now in unstable, which contains the fixes required
for goocalender to use gir1.2-goocanvas-2.0 instead of python-goocalendar.

Regards,

Ross