Syncing module configs

Part of a cluster of PRs I'm opening which use [modulesync](https://github.com/puppetlabs/modulesync) to synchronise standard config files from https://github.com/theforeman/foreman-installer-modulesync.  Fixes should be made to that central repo.

Others:
* https://github.com/theforeman/puppet-concat/pull/4
* https://github.com/theforeman/puppet-dhcp/pull/24
* https://github.com/theforeman/puppet-dns/pull/23
* https://github.com/theforeman/puppet-foreman_proxy/pull/119
* https://github.com/theforeman/puppet-git/pull/8
* https://github.com/theforeman/puppet-puppet/pull/181
* https://github.com/theforeman/puppet-tftp/pull/22