anchor.diff:  
     vim-startify = buildVimPluginFrom2Nix {
       pname = "vim-startify";
  -    version = "2019-10-27";
  +    version = "2019-11-06";
       src = fetchFromGitHub {
         owner = "mhinz";
         repo = "vim-startify";
  -      rev = "bba214f6b39d782c15f2d97fbc98fd0d18ace909";
  -      sha256 = "0cmqklc553wqxs72qnwqsp1nchsxi46kfyz01zr5bdxzjg4afyis";
  +      rev = "2ea908578955c9a4ab6d0337531c0f122b51c182";
  +      sha256 = "0014w64g9p3rq7mk9ri3hhmgyr0wrmxgv24gcaw5hr90cr58gs6b";
       };
     };
   
  
positive.code: 
    vim-ruby = buildVimPluginFrom2Nix {
      pname = "vim-ruby";
      version = "2019-09-05";
      src = fetchFromGitHub {
        owner = "vim-ruby";
        repo = "vim-ruby";
        rev = "1c70532339889b7794a52b956f389b4f9ab9b3eb";
        sha256 = "1rj06j71f08b1may9pm27xf6k19bcw3jq3jbwndd975qram7zcr0";
      };
    };
  
  
negative.code: 
    plantuml-syntax = buildVimPluginFrom2Nix {
      pname = "plantuml-syntax";
      version = "2019-11-06";
      src = fetchFromGitHub {
        owner = "aklt";
        repo = "plantuml-syntax";
        rev = "82ff416ce99cc9f69b1af54b8832eaf6cdbeaea6";
        sha256 = "1297h9jipfx2xw5dqh1286g2syv5c18g15644lqn11s62skqxd16";
      };
    };
  
  