Dear Maintainer,

In version 0.7.2-2, the conffile /etc/video_format was dropped from dvdauthor.

However, the obsolete conffile is not properly cleant up during the upgrade
(e.g. from bullseye to bookworm):

$ adequate dvdauthor
dvdauthor: obsolete-conffile /etc/video_format
$ dpkg-query -W -f='${Conffiles}\n' dvdauthor | grep obsolete$
 /etc/video_format 74dc898e450bd58fb6b2000ec1a7c7f2 obsolete

Please use the dpkg-maintscript-helper support provided by
dh_installdeb to remove this obsolete conffile on upgrade.

https://www.debian.org/doc/debian-policy/ch-files.html#s-config-files
https://manpages.debian.org/man/1/dh_installdeb

Thanks for your work,