Bug#881795: fix ftbfs with updated libcdio

[Matthias Klose]

Package: src:kover
Version: 1:4-11
Severity: serious
Tags: sid buster patch

kover ftbfs with updated libcdio with the updated libcdio. Upstream version 6
builds fine with that.

see https://launchpad.net/ubuntu/+source/kover for a packaging proposal.