Correct permissions of Sonarr/Radarr backup upon upgrade

[Safihre]

@ymartin59 I think the release of just Sonarr/Radarr is creating problems. Because SABnzbd/NZBGet/Deluge are not updated they still create files as sabnzbd:users and the new Sonarr/Radarr packages are no longer part of users. I think this is the source of the problems described in #3185 . Now that you published Sonarr/Radarr, we need the downloaders to be updated ASAP.. ⏩⏩
And it also means that also other processors like Sickrage/CouchPotato also need updates right away! This whole switch needs to happen at once, we can't do it one package at a time 😨

Regarding this upgrade problem:
While I first thought that removing these files would be an option, I now see that the Sonarr/Radarr Wiki actually refer to this /tmp/ location as a valid source of recent backups. I inspected the backup and update process and these are the only folders created.

Checklist

• Build rule all-supported completed successfully
• Package upgrade completed successfully
• New installation of package completed successfully

[ymartin59]

@Safihre The same way we decided to keep busybox in packages at least to clean up previous service user, wouldn't it be possible to enlist new service user to both sc- group and users group if available in system?

[Safihre]

Sure we could, I actually did something like that for #3094.
But doesn't that sort of remove the purpose of having this whole service-user way? Could just run all packages as 1 user basically. Or am I over-generalizing?

[Safihre]

@ymartin59 when are you publishing all these things like this fix and the download packages? Because in the weekend there wil be a big wave of updates since that's when users have time for it.
Otherwise we will be flooded with people complaining about permissions!

[ymartin59]

@Safihre I do not think so, as I have unpublished/desactived radarr/nzbdrone packages from repository... Now I decided to do so as soon as an "big" issue is reported on "just published" packages. Sorry but I have a "real" life too.