QA output created by 138

=== Check on an image with a multiple of 2^32 clusters ===

Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=512
wrote 512/512 bytes at offset 0
512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
qemu-img: Check failed: Cannot allocate memory
*** done