It did not matter before, but now that _make_test_img understands -o, we
should use it properly here.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>
---
 tests/qemu-iotests/051 | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/qemu-iotests/051 b/tests/qemu-iotests/051
index 53bcdbc911..9cd1d60d45 100755
--- a/tests/qemu-iotests/051
+++ b/tests/qemu-iotests/051
@@ -157,7 +157,7 @@ echo
 echo === With version 2 images enabling lazy refcounts must fail ===
 echo
 
-_make_test_img -ocompat=0.10 $size
+_make_test_img -o compat=0.10 $size
 
 run_qemu -drive file="$TEST_IMG",format=qcow2,lazy-refcounts=on
 run_qemu -drive file="$TEST_IMG",format=qcow2,lazy-refcounts=off
-- 
2.23.0