Messages dupliqués lors de la modification d'invités en cours d'exécution

# hpvmmodify -P test_duperr -a disk:scsi::file:/tmp/zero.size.1 \
 -a disk:scsi::file:/tmp/zero.size.2
hpvmmodify: WARNING (test_duperr): File size of: 0 (bytes) for disk backing file:
 /tmp/zero.size.1 must be equal to or greater than: 512 (bytes),
 or the device may not show up in the guest when booted.
hpvmmodify: WARNING (test_duperr): File size of: 0 (bytes) for disk backing file:
 /tmp/zero.size.2 must be equal to or greater than: 512 (bytes),
 or the device may not show up in the guest when booted.
hpvmmodify: WARNING (test_duperr): File size of: 0 (bytes) for disk backing file:
 /tmp/zero.size.1 must be equal to or greater than: 512 (bytes),
 or the device may not show up in the guest when booted.
hpvmmodify: WARNING (test_duperr): File size of: 0 (bytes) for disk backing file:
 /tmp/zero.size.2 must be equal to or greater than: 512 (bytes),
 or the device may not show up in the guest when booted.