Pin rspec-puppet-facts if older ruby
Pin rspec-puppet-facts if older ruby

1.9.5 version of rspec-puppet-facts requires a newer ruby. Since we
still test with centos7 (which has older ruby), we need to add a
conditional to pull in the correct rspec-puppet-facts version

Change-Id: I357f7b86dda6d6813f39dd6d276b94aeee87af12

openstack/puppet-pacemaker,openstack/puppet-pacemaker,openstack/puppet-pacemaker,openstack/puppet-pacemaker