[pkg] Use “dependency package” instead of “virtual package” to describe python3-cubicweb-postgresql-support The term “virtual” was too imprecise and is not accepted for empty packages by Lintian anymore.

[pkg] Move lintian-overrides file to debian/source directory Just use the now preferred location.

[pkg] Stop using /etc/bash_completion.d cubicweb-ctl shipped an empty /etc/bash_completion.d as a leftover of shipping a bash completion script. As pointed by Lintian, this directory is not obsolete, so let's get rid of it for good.

[pkg] Tidy substvars usage in control file The documentation package was missing a Built-Using field to record the provenance of the templates. Empty packages or meta packages do not require Depends on a specific Python version, so we can remove the relevant substvars.