QA output created by 051
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728
-Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728 backing_file=TEST_DIR/t.IMGFMT.base
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728 backing_file=TEST_DIR/t.IMGFMT.base backing_fmt=IMGFMT
=== Unknown option ===
Testing: -drive if=ide
QEMU X.Y.Z monitor - type 'help' for more information
-(qemu) QEMU_PROG: Initialization of device ide-hd failed: Device needs media, but drive is empty
+(qemu) QEMU_PROG: Device needs media, but drive is empty
Testing: -drive if=virtio
QEMU X.Y.Z monitor - type 'help' for more information
Testing: -drive file=TEST_DIR/t.qcow2,if=ide,readonly=on
QEMU X.Y.Z monitor - type 'help' for more information
-(qemu) QEMU_PROG: Initialization of device ide-hd failed: Block node is read-only
+(qemu) QEMU_PROG: Block node is read-only
Testing: -drive file=TEST_DIR/t.qcow2,if=virtio,readonly=on
QEMU X.Y.Z monitor - type 'help' for more information