du bogus warning with bind mounts

[Ondrej Oprala]

Hi, I've changed the du util a bit to reflect 
the proposed solution here 
http://marc.info/?l=coreutils-bug&m=134124896022426&w=2 .
I'm not sure about the XDEV checking though. Shouldn't the matching
st_dev numbers be enough to know both files are on the same device?
If true, then the check is implied in the di_set_lookup function, isn't it?
Cheers,
 Ondrej.

DIFF
Description: application/mbox