Fix stdlib version in metadata
Fix stdlib version in metadata

puppetlabs-stdlib is now using the 5.1 version, so we should fix the
stdlib version in metadata.

Change-Id: I18c0d1c34c6e6022983664c5349456870ae8f30f

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