anchor.diff:  import "dart:math" show max;
   
   import "package:args/args.dart";
  -import 'package:dart_coveralls/dart_coveralls.dart' show CommandLineClient, log;
  +import 'package:dart_coveralls/dart_coveralls.dart' show CommandLineClient;
   import 'package:logging/logging.dart';
   import 'package:stack_trace/src/chain.dart';
   
  
positive.code:     }
  
      if (logLevel != Level.OFF) {
        log.onRecord.where((rec) => rec.level >= logLevel).listen((rec) {
          print(rec.message);
          if (rec.error != null) {
            print(rec.error);
  
negative.code: 
    bool handleLogging(ArgResults res) {
      var logLevelStr = res['log-level'];
      if(Level.LEVELS.where((l) => l.value == logLevelStr).length == 0){
        print("Invalid Log level: ${logLevelStr}");
        return false;
      }
  
      Level logLevel = Level.LEVELS
          .firstWhere((level) => level.name.toLowerCase() == logLevelStr);
  