Patch v2 was here:
https://www.redhat.com/archives/libguestfs/2019-April/thread.html#00114
There's no change here except that I've rebased it against the latest
master branch and retested. There was a comment by Pino
(
https://www.redhat.com/archives/libguestfs/2019-April/msg00117.html)
which isn't incorporated into this patch.
Rich.