qemu with hax to log dma reads & writes jcs.org/2018/11/12/vfio

iotests: Fix test 178

A recent change to qemu-img changed expected error message output, but
178 takes long enough to execute that it does not get run by 'make
check' or './check -g quick'.

Fixes: 43d589b074
Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20200521192137.1120211-2-eblake@redhat.com>

+2 -2
+1 -1
tests/qemu-iotests/178.out.qcow2
··· 13 13 qemu-img: Invalid parameter 'snapshot.foo' 14 14 qemu-img: Failed in parsing snapshot param 'snapshot.foo' 15 15 qemu-img: --output must be used with human or json as argument. 16 - qemu-img: Image size must be less than 8 EiB! 16 + qemu-img: Invalid image size specified. Must be between 0 and 9223372036854775807. 17 17 qemu-img: Unknown file format 'foo' 18 18 19 19 == Size calculation for a new file (human) ==
+1 -1
tests/qemu-iotests/178.out.raw
··· 13 13 qemu-img: Invalid parameter 'snapshot.foo' 14 14 qemu-img: Failed in parsing snapshot param 'snapshot.foo' 15 15 qemu-img: --output must be used with human or json as argument. 16 - qemu-img: Image size must be less than 8 EiB! 16 + qemu-img: Invalid image size specified. Must be between 0 and 9223372036854775807. 17 17 qemu-img: Unknown file format 'foo' 18 18 19 19 == Size calculation for a new file (human) ==