[Cooker] du -b doesn't work correctly

[andre]

If i make a file with
$dd if=/dev/zero of=test count=1 seek=10000

than 
$du test 
4       test

which is the correct answer. But if i do
$du -b test
5120512 test

Which isn't the correct answer. It should be like
$/oldMandrake/usr/bin/du -b test 
4096    test