Hi Rainer,

There is a section on the :padline header argument in the "Specific
Header Arguments" section of the Org-mode documentation, however you
most likely need a more recent version of the documentation loaded.

This header and documentation were added in March.

,----
| commit d0a4ed53f16ec84e042e7bb845ea80f6377c30cc
| Author: Eric Schulte <schulte.eric@gmail.com>
| Date:   Tue Mar 15 11:11:26 2011 -0600
|
|     ob: new header argument `padline' controls newline padding around tangled code
|
|     * lisp/ob-tangle.el (org-babel-spec-to-string): Check value of padline
|       on tangling, no longer use the now-removed variable
|       `org-babel-tangle-pad-newline'.
|     * lisp/ob.el (org-babel-header-arg-names): Add padline to the list of
|       header argument names.
|       (org-babel-default-header-args): Set the default value of padline to
|       "yes".
|       (org-babel-merge-params): Cleaned up the merge logic, added padline.
|     * doc/org.texi (padline): Documentation of the new padline header
|       argument.
|
`----

Best -- Eric

Rainer M Krug <r.m.krug@gmail.com> writes:

> On Thu, Jun 9, 2011 at 4:46 PM, Eric Schulte <schulte.eric@gmail.com> wrote:
>
>> Rainer M Krug <r.m.krug@gmail.com> writes:
>>
>> > Hi
>> >
>> > when tangling the following with Org-mode version 7.5
>> > (release_7.5.358.g5194), test.R begins with an empty line - but when
>> > tangling with 7.5, it does not start with an empty line.
>> >
>> > The empty line occurs *after* the shebang. Empty lines are usually not a
>> > problem, but I am using
>> > http://orgmode.org/worg/org-contrib/babel/examples/Rpackage.html for a
>> > package, and this empty line makes my DESCRIPTION file invalid.
>> > For the moment I am reverting to 7.5, but it would be great if this could
>> be
>> > fixed.
>> >
>> > * test
>> > #+begin_src R :tangle test.R :shebang
>> > This is
>> > a test
>> > #+end_src
>> >
>>
>> Hi Rainer,
>>
>> I actually believe that the current behavior is the more "correct"
>> behavior, however I'm not sure if the default padding behavior is
>> technically specified when no ":padline" header argument is given.
>>
>> The following combination of header arguments results in the desired
>> behavior.  Note that the shebang line isn't required, I was just using
>> it to easily view file contents and to see if an empty line was inserted
>> between shebang and contents.
>>
>
> Thanks - that is working. But :padline does not seem to be in the manual?
>
> Thanks for your help,
>
> Rainer
>
>
>>
>> #+begin_src R :tangle test.R :shebang #!/bin/cat :padline no
>> This is
>> a test
>> #+end_src
>>
>> Best -- Eric
>>
>> --
>> Eric Schulte
>> http://cs.unm.edu/~eschulte/
>>

--
Eric Schulte
http://cs.unm.edu/~eschulte/