What programs does dirdiff use?  From a grep for 'exec' and
'open', we see the following

program		package
-------		-------
cmp		diff
diff		diff
bk		(bitkeeper) [not in debian]
cp		fileutils


Both "diff" and "fileutils" are deemed "essential", so
we're not supposed to declare the dependency.


	2002-05-01

Sent the man page to Paul M.
