[telemetry/server] Proper escape $RANDOM variable
[telemetry/server] Proper escape $RANDOM variable

Fix ceilometer-expirer command.

Close: #32

gwdg/puppet-openstack-cloud,gwdg/puppet-openstack-cloud,gwdg/puppet-openstack-cloud,Prophidys/puppet-openstack-cloud,redhat-cip/puppet-openstack-cloud,redhat-cip/puppet-openstack-cloud,goneri/puppet-openstack-cloud,gwdg/puppet-openstack-cloud,Prophidys/puppet-openstack-cloud,redhat-cip/puppet-openstack-cloud,goneri/puppet-openstack-cloud,Prophidys/puppet-openstack-cloud