Comment 1 for bug 1498618

This was fixed a (really) long time ago: https://github.com/libguestfs/libguestfs/commit/101d728e80cce73b882aac7af457013491d03311

This would also be a good time for Ubuntu to update libguestfs to a version that doesn't have known security issues (but is on the same stable branch). See my comment here: https://bugzilla.redhat.com/show_bug.cgi?id=1194472#c2