qemu-img: measure: refresh options/--help

Add missing long options and --help output,
reorder options for consistency.

Also add -s short option for --size (and remove OPTION_SIZE).

Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Message-ID: <20250531171609.197078-26-mjt@tls.msk.ru>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
1 file changed