anchor.diff:  
     vim-gitgutter = buildVimPluginFrom2Nix {
       pname = "vim-gitgutter";
  -    version = "2020-08-07";
  +    version = "2020-08-31";
       src = fetchFromGitHub {
         owner = "airblade";
         repo = "vim-gitgutter";
  -      rev = "8005f71aabef13f5872b3ef4802f36503a16c451";
  -      sha256 = "0ns33dbkw8lc6rj6mvkgymdsl3i4g8slbh06g8h4rfn8qq5wjxbw";
  +      rev = "098b9c82e9ac39b0d203635a8041bb1aceb8426c";
  +      sha256 = "1d0shs6q509zwfpp0dqffhh5fm8fr8x6km6w8mf4m9p1fkxyaz1g";
       };
       meta.homepage = "https://github.com/airblade/vim-gitgutter/";
     };
  
positive.code: 
    nvim-treesitter = buildVimPluginFrom2Nix {
      pname = "nvim-treesitter";
      version = "2020-08-26";
      src = fetchFromGitHub {
        owner = "nvim-treesitter";
        repo = "nvim-treesitter";
        rev = "e8fa0d0b31954314528bb88de3b8357af75d21fd";
        sha256 = "0rczmzzcc82499bbbvz4bfpv8llkzz21hx7i2pz3471c2c97s3hn";
      };
      meta.homepage = "https://github.com/nvim-treesitter/nvim-treesitter/";
    };
  
negative.code: 
    vim-markbar = buildVimPluginFrom2Nix {
      pname = "vim-markbar";
      version = "2020-08-31";
      src = fetchFromGitHub {
        owner = "Yilin-Yang";
        repo = "vim-markbar";
        rev = "df13c3abe88c01a716b1099de953dcfa1679e663";
        sha256 = "1y5w182d57z1nl8c7ng25m88by88pnxqdsxmcnnygdfjmvbv8jl9";
      };
      meta.homepage = "https://github.com/Yilin-Yang/vim-markbar/";
    };
  