Bug#488039: policy: chown uses owner:group not owner.group

[Kurt Roeckx <kurt@roeckx.be>]

Package: debian-policy
Version: 3.8.0.1
Severity: minor

There are several places in policy that use something like "root.root",
when talking about the owner and group of a file.  People used to use
that notation to separate the owner and group, and it
still works, but the proper notation would be "root:root".

I found atleast the following:
- 9.1.2: root.staff (also has a proper chown call.)
- 10.9: root.root
- 11.6: <user>.mail, root.mail
- 11.11: root.games (2 times)


Kurt