anchor.diff:  
     src = fetchurl {
       url = "https://www.kernel.org/pub/software/scm/git/git-${version}.tar.xz";
  -    sha256 = "0rnlbp7l4ggq3lk96v24rzw7qqawp6477i3b4m0b5q3346ap008w";
  +    sha256 = "03bvb8s5j8i54qbi3yayl42bv0wf2fpgnh1a2lkhbj79zi7b77zs";
     };
   
     patches = [
  
positive.code: }:
  
  let
    version = "2.6.4";
    svn = subversionClient.override { perlBindings = true; };
  in
  
  
negative.code:   meta = {
      homepage = http://git-scm.com/;
      description = "Distributed version control system";
      license = stdenv.lib.licenses.gpl2;
  
      longDescription = ''
        Git, a popular distributed version control system designed to
  