Comment 3 for bug 1934902

Thanks again for this. We determined we didn't need to have distro-info in our Build-Depends, which then opened up the possibility to use subst vars via debian/rules to make more simple Depends on Xenial vs Bionic++. This changeset is represented here https://github.com/canonical/ubuntu-advantage-client/commit/4d35b5c4445dc6dba28f7daa3f11ba8c212ea6b2