anchor.diff:    var migratedDays = migratedLines / _linesPerDay;
     var daysLeft = days - migratedDays;
   
  -  print("${label.padRight(12)} ${pad(migratedFiles, 4)} / ${pad(files, 4)} "
  +  print("${label.padRight(12)} ${pad(migratedFiles, 4)}/${pad(files, 4)} "
         "files (${percent(migratedFiles, files)}%), "
         "${pad(migratedLines, 6)}/${pad(lines, 6)} "
         "lines (${percent(migratedLines, lines)}%), "
         "${pad(migratedDays.toStringAsFixed(2), 6)}/"
  -      "${pad(days.toStringAsFixed(2), 6)} "
  +      "${pad(days.toStringAsFixed(2), 5)} "
         "days (${percent(migratedDays, days)}%), "
  -      "${pad(daysLeft.toStringAsFixed(2), 6)} "
  -      "days left (${percent(daysLeft, days)}%)");
  +      "${pad(daysLeft.toStringAsFixed(2), 5)} days left");
   }
  
positive.code:     var migratedLines = 0;
  
      for (var legacyPath in listFiles(dir)) {
        files++;
        var lineCount = readFileLines(legacyPath).length;
        lines += lineCount;
  
negative.code: // TODO(rnystrom): Update this with numbers from migrating some language tests.
  const _linesPerDay = 24607;
  
  const _includeNonCoreLibs = false;
  
  const _nonCoreLibs = [
    "lib_2/html/",
    "lib_2/isolate/",
    "lib_2/mirrors/",
    "lib_2/profiler/",
    "lib_2/wasm/",
    "standalone_2/io/",
  ];
  
  void main(List<String> arguments) {
    var totalFiles = 0;
    var totalLines = 0;
  