Hello,
This comes from
https://launchpad.net/bugs/1187044. The OP (although completely confused initially) raises a point that I sort of agree. The man page for 'du' states, for --separate-dirs, "do not include size of subdirectories"; but it is not really clear what that means -- a first read I had got me also a bit confused.
On the other hand, I am having problems trying to convey something more "clear".
separate directory size from directory contents
output size of directory separate from size of directory contents
I think something like this could be used, but I would like some input before going on.
Cheers,
--
..hggdh..