iotests.py: QemuIoInteractive: print output on failure
commit1f4b774a6444575b86f27b17d3d01e4f41df6581
authorVladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Wed, 1 Jul 2020 10:53:28 +0000 (1 13:53 +0300)
committerEric Blake <eblake@redhat.com>
Mon, 13 Jul 2020 14:01:01 +0000 (13 09:01 -0500)
tree3c54720209c3f5fc331da077b8067f238bcffd77
parenta1a7f56cdd1ddc99fcd1078c9285849aaaaaeca9
iotests.py: QemuIoInteractive: print output on failure

Make it simpler to debug when qemu-io fails due to wrong arguments or
environment.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200701105331.121670-3-vsementsov@virtuozzo.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
tests/qemu-iotests/iotests.py