anchor.diff:  
     meta = with lib; {
       description = "Logstash is a data pipeline that helps you process logs and other event data from a variety of systems";
  -    homepage    = "https://www.elastic.co/products/logstash";
  -    license     = if enableUnfree then licenses.elastic else licenses.asl20;
  -    platforms   = platforms.unix;
  +    homepage = "https://www.elastic.co/products/logstash";
  +    license = if enableUnfree then licenses.elastic else licenses.asl20;
  +    platforms = platforms.unix;
       maintainers = with maintainers; [ wjlroe offline basvandijk ];
     };
     passthru.tests =
  
positive.code: { elk7Version
  , enableUnfree ? true
  , lib, stdenv
  , fetchurl
  , makeWrapper
  , nixosTests
  
negative.code:       else "0nlwgaw6rmhp5b68zpp1pzsjs30b0bjzdg8f7xy6rarpk338s8yb";
    };
  
    dontBuild = true;
    dontPatchELF = true;
    dontStrip = true;
    dontPatchShebangs = true;
  
    buildInputs = [
      makeWrapper
      jre
    ];
  
    installPhase = ''
  