anchor.diff:  
     vim-speeddating = buildVimPluginFrom2Nix {
       pname = "vim-speeddating";
  -    version = "2019-02-27";
  +    version = "2019-11-12";
       src = fetchFromGitHub {
         owner = "tpope";
         repo = "vim-speeddating";
  -      rev = "ce2f1aae9f2be128b4ca322a8e797be3ae40c30b";
  -      sha256 = "1fcvwq5iixh31fm9sfmlz4m765z1vx2a2mi8bgh64g2v6095lm5x";
  +      rev = "fe98cfaa7ea9c4b838d42a6830437c919eb55b4e";
  +      sha256 = "02875qswrmanr7b798ymlc7w60055q0av0qj3fh7fvpqhsqpg52k";
       };
     };
   
  
positive.code: 
    lightline-vim = buildVimPluginFrom2Nix {
      pname = "lightline-vim";
      version = "2019-10-31";
      src = fetchFromGitHub {
        owner = "itchyny";
        repo = "lightline.vim";
        rev = "53bd3279da783cd5c1b1fafb4ff31077e81b6333";
        sha256 = "0yd9z6lb0b7spwacrb5x1qpvab720y70blmr7ai9gswi55vpfkls";
      };
    };
  
  
negative.code: 
    vim-autoformat = buildVimPluginFrom2Nix {
      pname = "vim-autoformat";
      version = "2019-11-11";
      src = fetchFromGitHub {
        owner = "Chiel92";
        repo = "vim-autoformat";
        rev = "4fb3ecc473093720f35d8d26ae8a8e46a445f116";
        sha256 = "199fpvfqbd1d4brxyy506j4nrp64wj6av2xh51a5q10dm84pddp9";
      };
    };
  
  