anchor.diff:  import 'package:logging/logging.dart';
   import 'package:pana/pana.dart' hide Pubspec;
   import 'package:pana/src/download_utils.dart';
  +import 'package:pana/src/utils.dart' show runProc;
   import 'package:path/path.dart' as p;
   import 'package:uuid/uuid.dart';
   
  
positive.code:     logFileOutput.write('Running tar:\n');
      final archive = 'package.tar.gz';
      final File tmpTar = new File(p.join(tmpDir, archive));
      final pr = await Process.run(
        'tar',
        ['-czf', tmpTar.path, '.'],
        workingDirectory: tarDir,
  
negative.code:     StringBuffer logFileOutput,
    ) async {
      logFileOutput.write('Running dartdoc:\n');
      final pr = await runProc(
        'dartdoc',
        [
          '--output',
  