patch to du to restrict to one file-system

[MFHorn]

>From article <5550 at zodiac.UUCP>, by jordan at zooks.ads.com (Jordan Hayes):
> Mark Levine <yba at sabre.BellCore.COM> writes:
> 	just use the quota mechanism.

Four of the six versions of Unix at our site (up and running that
I can thinkg of) don't have quotas.

> Gee whiz, doesn't anybody read manuals anymore?
> What about quot(8)???

Not all versions of Unix have quot.

Andy Rosen           | arosen at hawk.ulowell.edu | "I got this guitar and I
ULowell, Box #3031   | ulowell!arosen          |  learned how to make it
Lowell, Ma 01854     |                         |  talk" -Thunder Road
                   RD in '88 - The way it should be