anchor.diff:  
     src = fetchurl {
       url = "https://www.kernel.org/pub/software/scm/git/git-${version}.tar.xz";
  -    sha256 = "0s03ix9j1h0yychkh1l1cgpr1l9lwzn3rprl08rk8ii5ix02i0l8";
  +    sha256 = "0j685w6pzkn926z5nf5r8fij4ziipvw4c9yb0wc577nzf4j16rbd";
     };
   
     outputs = [ "out" ];
  
positive.code: assert svnSupport -> perlSupport;
  
  let
    version = "2.26.1";
    svn = subversionClient.override { perlBindings = perlSupport; };
  
    gitwebPerlLibs = with perlPackages; [ CGI HTMLParser CGIFast FCGI FCGIProcManager HTMLTagCloud ];
  
negative.code:     homepage = "https://git-scm.com/";
      description = "Distributed version control system";
      license = stdenv.lib.licenses.gpl2;
      changelog = "https://raw.githubusercontent.com/git/git/${version}/Documentation/RelNotes/${version}.txt";
  
      longDescription = ''
        Git, a popular distributed version control system designed to
  