iotests: Make 059 pass on machines with little RAM

echo

echo "=== Testing afl image with a very large capacity ==="

_use_sample_img afl9.vmdk.bz2

_img_info

# The sed makes this test pass on machines with little RAM

# (and also with 32 bit builds)

_img_info | sed -e 's/Cannot allocate memory/Invalid argument/'

_cleanup_test_img

# success, all done