Comment 4 for bug 1688322

I think the problem is clear and has been introduced in puppet-pacemaker in January. No idea as to why we seem to be hitting this frequently only now. My logstash search found the first occurrence of this (in the last 30d) here:
http://logs.openstack.org/16/454816/13/check-tripleo/gate-tripleo-ci-centos-7-ovb-ha/13c623c/console.html

A fix is here:
https://review.openstack.org/#/c/462704/