Low: Xen: fix documentation
Low: Xen: fix documentation

--HG--
extra : rebase_source : 62f36fcd2e874ea94d40664523b476925268f8fa

stevenraspudic/resource-agents,stevenraspudic/resource-agents,stevenraspudic/resource-agents,asp24/resource-agents,asp24/resource-agents,asp24/resource-agents