[Ubuntu] upgrade to qgis2.18

Tue Feb 27 11:32:34 PST 2018

On 02/27/2018 08:16 PM, Martin Landa wrote:
> recently QGIS 3.0 has been published. So QGIS 2.18 became current LTR.
> It's time to upgrade QGIS 2.14 to 2.18 ASAIU. Today I uploaded new
> package (2.18.17) to ubuntugis experimental for xenial. If no
> objection I will copy new packages to UbuntuGIS Unstable in the next
> days.

The branch still needed to be updated in the Vcs-Git URL. Fixed in git.