Add missing files from previous commit.

pkg/polymer/lib/src/build/runner.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.
 
 /**
  * Definitions used to run the polymer linter and deploy tools without using
  * pub serve or pub deploy.
  */
 library polymer.src.build.runner;
 
@@ skipping 68 matching lines @@
         'your package root directory.');
     return null;
   }
   return loadYaml(pubspec.readAsStringSync())['name'];
 }
 
 /**
  * Extract a mapping between package names and the path in the file system where
  * to find the sources of such package. This map will contain an entry for the
  * current package and everything it depends on (extracted via `pub
- * list-pacakge-dirs`).
+ * list-package-dirs`).
  */
 Map<String, String> _readPackageDirsFromPub(String currentPackage) {
   var dartExec = Platform.executable;
   // If dartExec == dart, then dart and pub are in standard PATH.
   var sdkDir = dartExec == 'dart' ? '' : path.dirname(dartExec);
   var pub = path.join(sdkDir, Platform.isWindows ? 'pub.bat' : 'pub');
   var result = Process.runSync(pub, ['list-package-dirs']);
   if (result.exitCode != 0) {
     print("unexpected error invoking 'pub':");
     print(result.stdout);
@@ skipping 269 matching lines @@
     output.write(entry.span.getLocationMessage(entry.message,
           useColors: useColors,
           color: levelColor));
   }
   return output.toString();
 }
 
 const String _RED_COLOR = '\u001b[31m';
 const String _MAGENTA_COLOR = '\u001b[35m';
 const String _NO_COLOR = '\u001b[0m';