Rename "pathos" package to "path".

pkg/intl/test/message_extraction/make_hardcoded_translation.dart

 #!/usr/bin/env dart
 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 /**
  * This simulates a translation process, reading the messages generated
  * from extract_message.dart for the files sample_with_messages.dart and
  * part_of_sample_with_messages.dart and writing out hard-coded translations for
  * German and French locales.
  */
 
 import 'dart:io';
 import 'dart:json' as json;
-import 'package:pathos/path.dart' as path;
+import 'package:path/path.dart' as path;
 import 'package:args/args.dart';
 import 'package:intl/src/intl_message.dart';
 import 'package:serialization/serialization.dart';
 
 /**
  * A serialization so that we can write out the more complex plural and
  * gender examples to JSON easily. This is a stopgap and should be replaced
  * with a commonly used translation file format.
  */
 get serialization => new Serialization()
@@ skipping 142 matching lines @@
   parser.addOption("output-dir", defaultsTo: '.',
       callback: (value) => targetDir = value);
   parser.parse(args);
 
   var fileArgs = args.where((x) => x.contains('.json'));
 
   var messages = json.parse(new File(fileArgs.first).readAsStringSync());
   translate(messages, "fr", french);
   translate(messages, "de_DE", german);
 }