Dear Git Maintainer,
(runit maintainer in CC)

Since runit 2.1.2-36, update-service will be used also to record the local admin
settings about the wanted status of a service (enabled/disabled).
See #942323 to understand why this was done.
This change will make git-daemon-run buggy in that using update-service
in maintscripts will overwrite local admin preference.

I've attached a patch that tries to emulate the logic of dh-runit, can you
have a look? Ideally this should be uploaded before runit.

Thanks,
Lorenzo