Inform the user about Libguestfs missing feature
Inform the user about Libguestfs missing feature

Some of VMInspect features depend on an experimental build of
Libguestfs.

Inform the User if such feature is not available.

Signed-off-by: Matteo Cafasso <43c758619f0ced9dc5c51a50803f3466c86e4c3d@gmail.com>

noxdafox/vminspect