Commit
bd50b41eebac96a13074eb3e58530fe80f8f5df8
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: Ic41d3ae2478c49aed222bfa978344727c5dc92a4