Greg Minshall writes:
> thanks.  my trivial test shows this works*except*  in the particular
> case where, when closing the Org Src buffer, `point` is on an empty
> line.  in this case, that one empty line is given extra spaces.
Yes, I was aware of this, but didn't think we could do better in this 
case. I've
thought about it some more, and came up with a solution.

Here's a new patch that's smarter about indenting the current line, and 
resolves
this remaining issue.

Regards,

-- 
Sébastien Miquel