anchor.diff:    };
   
     text = buildFromGitHub {
  -    version = 2;
  -    rev = "a9a820217f98f7c8a207ec1e45a874e1fe12c478";
  -    date = "2017-04-22";
  +    version = 3;
  +    rev = "470f45bf29f4147d6fbd7dfd0a02a848e49f5bf4";
  +    date = "2017-04-27";
       owner = "golang";
       repo = "text";
  -    sha256 = "0299rijwz0wzkyrh3n9z7s3ilcc7cslpn7a2a2rffl7vrf0rxv6b";
  +    sha256 = "0vccx9c47c9nxf06h993hwhgk0z70nls5si8x9r8jhhy918gp8p7";
       goPackagePath = "golang.org/x/text";
       goPackageAliases = [ "github.com/golang/text" ];
       excludedPackages = "cmd";
  
positive.code:   };
  
    pflag = buildFromGitHub {
      version = 2;
      owner = "spf13";
      repo = "pflag";
      rev = "2300d0f8576fe575f71aaa5b9bbe4e1b0dc2eb51";
      date = "2017-04-18";
      sha256 = "05xg5j1knc4inbj22bk8s6p346klnz5szq68292nnl5vkvs52rff";
    };
  
    pkcs7 = buildFromGitHub {
  
negative.code:   };
  
    tools = buildFromGitHub {
      version = 3;
      rev = "2382e3994d48b1d22acc2c86bcad0a2aff028e32";
      date = "2017-04-28";
      owner = "golang";
      repo = "tools";
      sha256 = "1i8rfq2l6vfdsj358k9fran2h1cc4dr28kncv17s4gw5w9zd9iya";
      goPackagePath = "golang.org/x/tools";
      goPackageAliases = [ "code.google.com/p/go.tools" ];
  
  