[ESS] executing Julia from org: error in ess-eval-region

[Stephen Eglen]

> You need to ":results output" to the src line to have anything in the
> results:
>
> #+begin_src julia :results output
>   x = [1, 2]
> #+end_src

thanks.  Do you know why 'results output' is needed for Julia chunks,
but not R?  

#+begin_src R
  1 + 2
#+end_src

#+RESULTS:
: 3

Stephen