It seems to me that this is a regression caused by most recent update of debian-installer-utils that started using dpkg-divert rather than mv to manage start-stop-daemon.
So I would guess the simplist fix here is to just make dpkg-divert quiet.
I've submitted merge proposal at https://code.launchpad.net/~smoser/debian-installer-utils/lp912431/+merge/87709 .
It seems to me that this is a regression caused by most recent update of debian- installer- utils that started using dpkg-divert rather than mv to manage start-stop-daemon.
So I would guess the simplist fix here is to just make dpkg-divert quiet.
I've submitted merge proposal at https:/ /code.launchpad .net/~smoser/ debian- installer- utils/lp912431/ +merge/ 87709 .