QA output created by 243

=== preallocation=off ===

Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 preallocation=off
File size: 196616
Disk usage: low

=== preallocation=metadata ===

Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 preallocation=metadata
File size: 67436544
Disk usage: low

=== preallocation=falloc ===

Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 preallocation=falloc
File size: 67436544
Disk usage: high

=== preallocation=full ===

Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 preallocation=full
File size: 67436544
Disk usage: high
*** done