anchor.diff:      version = 2;
       owner = "spf13";
       repo = "pflag";
  -    rev = "d16db1e50e33dff1b6cdf37596cef36742128670";
  -    date = "2017-03-27";
  -    sha256 = "1ffyq7pbalvp0ndv53p0k8xn5w413sra13jnc94zbq8dghz5kjah";
  +    rev = "9a906f17374922ed0f74e1b2f593d3723f2ffb00";
  +    date = "2017-04-05";
  +    sha256 = "0d9p2632izi5yjd6lw2w12xxpnj42a1ysmrfcb6251qa4k6kjiw4";
     };
   
     pkcs7 = buildFromGitHub {
  
positive.code:       pkgs.libpcap
      ];
      meta.useUnstable = true;
      date = "2017-04-04";
    };
  
    etcd_client = buildFromGitHub {
  
negative.code:     version = 2;
      owner = "minio";
      repo = "minio-go";
      rev = "bd69921c7f648abb5807b400b4a2b7a256ff9eb2";
      sha256 = "1ixygmiakm5jp7yi0n6wlanh7g56bh6n0bk8q194nbv39awpxcai";
      meta.useUnstable = true;
      date = "2017-04-05";
    };
  
    missinggo = buildFromGitHub {
  