Redirect stderr to stdout in push_cib() and backup_cib()
Redirect stderr to stdout in push_cib() and backup_cib()

With this change we are sure we capture any useful logs output by pcs on
stderr:

Before the change:
Error: Unable to write to file '/tmp2/foo.xml', No such file or directory
backup_cib: Running: pcs cluster cib /tmp2/foo.xml with code: 1 ->

After the change:
backup_cib: Running: pcs cluster cib /tmp2/foo.xml with code: 1 -> Error: Unable to write to file '/tmp2/foo.xml', No such file or directory

Change-Id: I41a534e4a162e0f0135c67fe52ed38de7249f091

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