Update CentOS to reboot instead of poweroff
Update CentOS to reboot instead of poweroff

simonfuhrer/packer-builder-xenserver-1,makunterry/packer-builder-xenserver,dongyuzheng/packer-builder-xenserver,xenserverarmy/packer,simonfuhrer/packer-builder-xenserver-1,fr34k8/packer-builder-xenserver,june07/packer-builder-xenserver,june07/packer-builder-xenserver,conceptboard/packer,conceptboard/packer,xenserverarmy/packer,makunterry/packer-builder-xenserver,rdobson/packer-builder-xenserver,fr34k8/packer-builder-xenserver,rdobson/packer-builder-xenserver,dongyuzheng/packer-builder-xenserver