anchor.diff:        elpaBuild {
           pname = "tramp";
           ename = "tramp";
  -        version = "2.4.4.1";
  -        src = fetchurl {
  -          url = "https://elpa.gnu.org/packages/tramp-2.4.4.1.tar";
  -          sha256 = "0jayd75yscaqvg6y0m6g2mgbjswyj5gqdij2az9g0j18vm5vbqy3";
  +        version = "2.4.4.4";
  +        src = fetchurl {
  +          url = "https://elpa.gnu.org/packages/tramp-2.4.4.4.tar";
  +          sha256 = "1f2d02xz3kpy50186wcy688lx76dv0gmrbkj2qdvifcwhyc26sz8";
           };
           packageRequires = [ emacs ];
           meta = {
  
positive.code:         ename = "swiper";
          version = "0.13.1";
          src = fetchurl {
            url = "https://elpa.gnu.org/packages/swiper-0.13.1.el";
            sha256 = "06ild7kck0x5ry8bf0al24nh04q01q3jhj6jjl4xz8n2s6jnn70y";
          };
          packageRequires = [ emacs ivy ];
          meta = {
  
negative.code:       elpaBuild {
          pname = "xr";
          ename = "xr";
          version = "1.20";
          src = fetchurl {
            url = "https://elpa.gnu.org/packages/xr-1.20.tar";
            sha256 = "0i3vfsp110z60gabn9x9rv21fvm7nnr234mvmpp7gx4l4hpadvzy";
          };
          packageRequires = [ emacs ];
          meta = {
  