Update pub to new getter syntax.

utils/pub/entrypoint.dart

 // Copyright (c) 2012, 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.
 
 #library('entrypoint');
 
 #import('io.dart');
 #import('lock_file.dart');
 #import('package.dart');
 #import('root_source.dart');
@@ skipping 37 matching lines @@
    */
   final Map<PackageId, Future<PackageId>> _installs;
 
   Entrypoint(this.root, this.cache)
   : _installs = new Map<PackageId, Future<PackageId>>();
 
   /**
    * The path to this "packages" directory.
    */
   // TODO(rnystrom): Make this path configurable.
-  String get path() => join(root.dir, 'packages');
+  String get path => join(root.dir, 'packages');
 
   /**
    * Ensures that the package identified by [id] is installed to the directory.
    * Returns the resolved [PackageId].
    *
    * If this completes successfully, the package is guaranteed to be importable
    * using the `package:` scheme.
    *
    * This will automatically install the package to the system-wide cache as
    * well if it requires network access to retrieve (specifically, if
@@ skipping 113 matching lines @@
    */
   Future _saveLockFile(List<PackageId> packageIds) {
     var lockFile = new LockFile.empty();
     for (var id in packageIds) {
       if (id.source is! RootSource) lockFile.packages[id.name] = id;
     }
 
     return writeTextFile(join(root.dir, 'pubspec.lock'), lockFile.serialize());
   }
 }