anchor.diff:    tarballUrls = base: patch: map (n: "${n}/util-linux-${version base patch}.tar") (baseUrls base);
   
     base = "2.32";
  -  patch = null;
  +  patch = "1";
   in
   stdenv.mkDerivation rec {
     name = "${type}util-linux-${version base patch}";
  
positive.code:     srcVerification =
        let
          base = "2.32";
          patch = null;
        in
        fetchurl {
          failEarly = true;
  
negative.code:         pgpsigSha256Urls = map (n: "${n}/sha256sums.asc") (baseUrls base);
          pgpKeyFingerprint = "B0C6 4D14 301C C6EF AEDF  60E4 E4B7 1D5E EC39 C284";
          pgpDecompress = true;
          outputHash = "86e6707a379c7ff5489c218cfaf1e3464b0b95acf7817db0bc5f179e356a67b2";
          inherit (src) outputHashAlgo;
        };
    };
  