[Libguestfs] [PATCH 3/5] tools: Make warnings about running on live guests more prominent.

A timely warning not to try running certain tools on live VMs. Sys::Guestfs::Lib detects this some of the time, but can't do it always. Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones virt-p2v converts physical machines to virtual machines. Boot with a live CD or over the network (PXE) and turn machines into Xen guests. http://et.redhat.com/~rjones/virt-p2v