Re: [PATCH 6/8] vcs-svn: Let caller set up sliding window for delta preimage

> The content of symlinks starts with the word "link " in SVN's
> worldview, so we need to prepend that text the sake of delta
> application.  Move responsibility for setting up the input state from
> svndiff0_apply to the calling program, so programs have a chance to
> seed the sliding window with text of their choice.
> 
> [jn: extracted from the patch "svn-fe: Use the --report-fd feature"]
> 
> Signed-off-by: David Barr <david.barr@cordelta.com>
> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>