[Libguestfs] [PATCH v2 00/18] Add discard support.

[Richard W.M. Jones]

This still isn't working at the moment.  See:
http://marc.info/?t=139457409300003&r=1&w=2

This set of patches:

 - Adds new APIs to support discard in libguestfs.

 - Adds discard support to virt-format.

 - Adds discard support to virt-sysprep.

 - Implements virt-sparsify --in-place.

Rich.