Debian: correct /var/log/swift unix rights
Debian: correct /var/log/swift unix rights

Debian package uses swift:adm with 0750, let's not force something else,
as this makes the puppet run not indempotent.

Change-Id: I325e2f722b11deb51a1b8f40d21fddac4593834c

openstack/puppet-openstack-integration,openstack/puppet-openstack-integration,openstack/puppet-openstack-integration