I'm trying to prepare a ledger report by including a ledger file with babel:

#+begin_src ledger :cmdline print
!include ledger.lgr
#+end_src

#+RESULTS:

And each time I try and eval the buffer, the results come back blank.
 org-confirm-babel-evaluate works perfectly fine with other blocks, like
sh, and it works for ledger blocks embedded in org source blocks (described
in the tutorial), but I can't get !include to load an external file.

I'm trying to include some ledger content copied from
http://orgmode.org/worg/org-tutorials/weaving-a-budget.html , and the
'print' option in ledger should always emit some output.

Is this a known issue that hasn't been updated in that tutorial?  Is there
some other way to include external ledger files into org-babel?

This is in org version 8.2.6-14-g063c8b-elpa.

Thanks,

-- Adam