[Rd] documentation for argument to screen (PR#9085)

[Seth Falcon]

> On Tue, 18 Jul 2006, Douglas Grove wrote:
>> And for future reference, is there a source that documents
>> how to create a patch for documentation or source code?
>> I have never made a patch but I would like to be able
>> to do this in the future.

One way to do this is:

1. Obtain the Subversion client, svn, and create a checkout of the R
   sources.

2. Edit files in your working copy.

3. Create a patch from the top-level dir like this:

      svn diff > myfixes.diff

+ seth