anchor.diff:      owner = "github";
       repo = "hub";
       rev = "v${version}";
  -    sha256 = "0a5i351v998vdwf883qhh39c15x56db01fr9hscz4ha7r9550pqg";
  +    sha256 = "0hxmbpyv2yjxg4v3z50x5ikgcz7mgv5prya8jcpi277vq2s0wwa1";
     };
   
  -  buildInputs = [ groff ronn ruby utillinux ] ++
  +  nativeBuildInputs = [ groff ronn utillinux ];
  +  buildInputs = [ ruby ] ++
       stdenv.lib.optional stdenv.isDarwin Security;
   
     postPatch = ''
  
positive.code: 
  buildGoPackage rec {
    name = "hub-${version}";
    version = "2.5.1";
  
    goPackagePath = "github.com/github/hub";
  
  
negative.code:     install -D etc/hub.fish_completion  "$bin/share/fish/vendor_completions.d/hub.fish"
  
      make man-pages
      cp -vr --parents share/man/man[1-9]/*.[1-9] $bin/
    '';
  
    meta = with stdenv.lib; {
  