qemu-img: allow qemu-img measure --object without a filename

In most qemu-img sub-commands the --object option only makes sense when
there is a filename.  qemu-img measure is an exception because objects
may be referenced from the image creation options instead of an existing
image file.  Allow --object without a filename.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20200221112522.1497712-4-stefanha@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>

0 files changed, 0 insertions, 0 deletions