anchor.diff:  
     vimpreviewpandoc = buildVimPluginFrom2Nix {
       pname = "vimpreviewpandoc";
  -    version = "2019-02-02";
  +    version = "2019-02-10";
       src = fetchFromGitHub {
         owner = "tex";
         repo = "vimpreviewpandoc";
  -      rev = "90e39ff676c78bc6f3dde2a76b56fe86aa38d39c";
  -      sha256 = "0xaaq565wfd2bx64wm1cy0k18jrm6l9snwkvmgbp7p10zjxnqfhs";
  +      rev = "3b0a589140abf6cc5d19ad678a7f01822bbee34e";
  +      sha256 = "15yjr01wfnhaqw1k8bgxk04vvh76y13zfms66irpihw79f9yzxi9";
       };
     };
   
  
positive.code: 
    denite-nvim = buildVimPluginFrom2Nix {
      pname = "denite-nvim";
      version = "2019-02-02";
      src = fetchFromGitHub {
        owner = "Shougo";
        repo = "denite.nvim";
        rev = "334fce21f798a3c4c7b33a37b107df28069e2bd7";
        sha256 = "01nbbsp62jqff7pm85lbi3kmwgq83cpm87p3bn8nbb7iw8ivkiva";
      };
    };
  
  
negative.code: 
    vim-terraform = buildVimPluginFrom2Nix {
      pname = "vim-terraform";
      version = "2019-02-08";
      src = fetchFromGitHub {
        owner = "hashivim";
        repo = "vim-terraform";
        rev = "6d830bb087dfb27a0e911286678de33b78c3e25d";
        sha256 = "0s982977bn18qbmbd1yihq76fpzkk14ajgi689h21gjm4cq8ycyk";
      };
    };
  
  