[PATCH] iotests/259: Fix reference output

[Max Reitz]

The error message has changed recently, breaking the test.  Fix it.

Fixes: a2b333c01880f56056d50c238834d62e32001e54
       ("block: nbd: Fix convert qcow2 compressed to nbd")
Signed-off-by: Max Reitz <mreitz@redhat.com>
---
 tests/qemu-iotests/259.out | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/qemu-iotests/259.out b/tests/qemu-iotests/259.out
index e27b9ff38d..1aaadfda4e 100644
--- a/tests/qemu-iotests/259.out
+++ b/tests/qemu-iotests/259.out
@@ -10,5 +10,5 @@ disk size: unavailable
 
 --- Testing creation for which the node would need to grow ---
 Formatting 'TEST_DIR/t.IMGFMT', fmt=qcow2 size=67108864 preallocation=metadata
-qemu-img: TEST_DIR/t.IMGFMT: Could not resize image: Image format driver does 
not support resize
+qemu-img: TEST_DIR/t.IMGFMT: Could not resize image: Cannot grow NBD nodes
 *** done
-- 
2.26.2