Commit
d1bec8f61190bab9b66b67bbe23387ad144484a5
by Oliver Smithdebian/postinst: add checks, be verbose
Do not attempt to change permissions/ownership if the package gets
upgraded from a version higher than the next release.
Do not fail if the user deleted the config file.
Be verbose when changing permissions.
Related: OS#4107
Change-Id: I48e8f5d2a36886d28366bef1918f7464a48d2159