Fix fedora shadow permissions
Fix fedora shadow permissions

Fedora belongs in our tests to the RH family,
lets make it explicitely here, as ohai detects platform_family on fedora
as 'fedora' and not 'rhel'.

See https://github.com/dev-sec/linux-baseline/pull/82 for reference

Signed-off-by: Artem Sidorenko <15a0730a27c69f62ab86f2b6c639fca202166c02@posteo.de>

hardening-io/chef-os-hardening,hardening-io/chef-os-hardening