anchor.diff:  
     tagbar = buildVimPluginFrom2Nix {
       pname = "tagbar";
  -    version = "2020-01-08";
  +    version = "2020-01-16";
       src = fetchFromGitHub {
         owner = "majutsushi";
         repo = "tagbar";
  -      rev = "3bd3ba403dfaf5868656264f979fc0dc63526afb";
  -      sha256 = "1s9y6qxvys393gsql4x5v0y2wfdb8b2a7mv8a39as98msq67a4sx";
  +      rev = "db6f884fc77aaaf29772e209a54f5f346d2083e5";
  +      sha256 = "0vywdbvrwbimdizjzdncmrsl21jbklqwxq4g2piw3kqmgk721jg0";
       };
     };
   
  
positive.code: 
    vim-pandoc-syntax = buildVimPluginFrom2Nix {
      pname = "vim-pandoc-syntax";
      version = "2019-11-14";
      src = fetchFromGitHub {
        owner = "vim-pandoc";
        repo = "vim-pandoc-syntax";
        rev = "98a3051566690fcd779f540e9d4a81ccad667bd5";
        sha256 = "0bvrkflryzb43xg5s9kiksk7nslgrqpybasz4grjv6lnmzis7x97";
      };
    };
  
  
negative.code: 
    jedi-vim = buildVimPluginFrom2Nix {
      pname = "jedi-vim";
      version = "2020-01-14";
      src = fetchFromGitHub {
        owner = "davidhalter";
        repo = "jedi-vim";
        rev = "e2abec21c5d9794d22d4b0c0327d274c87a99c9f";
        sha256 = "18mbhabl9iixy11pg055akmdrdrfna9dlbi2xysshjzijrc7gdkw";
        fetchSubmodules = true;
      };
    };
  