anchor.diff:  
     vim-snippets = buildVimPluginFrom2Nix {
       pname = "vim-snippets";
  -    version = "2019-12-12";
  +    version = "2019-12-19";
       src = fetchFromGitHub {
         owner = "honza";
         repo = "vim-snippets";
  -      rev = "3ba36bb710988349140138707731baeebd6337e4";
  -      sha256 = "19831g3b6cd5ws0zp6xp4aj110pzf6za3av9ac1s9dnpi97d37g9";
  +      rev = "180d239935a2cb496c7b702d9fbe38f05fe3dea2";
  +      sha256 = "0gz8yk87c0v0vaamy2nz7flrklzb00867nm7vcmyfpamha4wkib4";
       };
     };
   
  
positive.code: 
    lightline-vim = buildVimPluginFrom2Nix {
      pname = "lightline-vim";
      version = "2019-12-13";
      src = fetchFromGitHub {
        owner = "itchyny";
        repo = "lightline.vim";
        rev = "ef6df46efe5ac5289f084045e57c492205bd08b5";
        sha256 = "01nrkjh18qd65kbnrw9s2kdb2ml5a7648zvqzyjxw1mcqpw57838";
      };
    };
  
  
negative.code:     src = fetchFromGitHub {
        owner = "fatih";
        repo = "vim-go";
        rev = "b1b9a1b0d4e9b2408b29ed566135f56ec27629b9";
        sha256 = "1m4ldfc7k5ds8z4bjl8dpx63dx7d4b75ifkpjxz8l9rq6ix8i4y8";
      };
    };
  
  