anchor.diff:  
     doCheck = false;
   
  -  nativeBuildInputs = [ installShellFiles pkg-config ];
  +  nativeBuildInputs = [ go-md2man installShellFiles pkg-config ];
   
     buildInputs = [
       btrfs-progs
  
positive.code: 
    buildPhase = ''
      patchShebangs .
      make GIT_COMMIT="unknown"
      make -C docs
    '';
  
    installPhase = ''
      install -Dm755 buildah $out/bin/buildah
      installShellCompletion --bash contrib/completions/bash/buildah
      make -C docs install PREFIX="$man"
    '';
  
negative.code: { stdenv
  , buildGoModule
  , fetchFromGitHub
  , go-md2man
  , installShellFiles
  , pkg-config
  , gpgme
  