qemu-io: Make alloc output useful when nb_sectors=1
There is no indication whether or not the sector is allocated when
nb_sectors=1:
sector allocated at offset 64 KiB
This message is produced whether or not the sector is allocated.
Simply use the same message as the plural case, I don't think the
English is so broken that we need special case output here:
0/1 sectors allocated at offset 64 KiB
This change does not affect qemu-iotests since nb_sectors=1 is not used
there.
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>