busybox: fix du-k-works test case
[YOCTO #2896]
The du-k-works test seems to assume that du -k on a directory with two files
totaling 80 kilobytes should report either 80k or 88k. In ext4 filesystm however,
both busybox' du -k and coreutils' du -k reports a size of 84k which causes the
test to fail.
Intergrate the patch from:
http://git.busybox.net/busybox/commit/?id=
a5ee090e8651692545514a81a16c6cde3a2dc577
Signed-off-by: Roy.Li <rongqing.li@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
