Link to dartlang.org in pub's command-line help messages.

sdk/lib/_internal/pub/lib/src/command/deps.dart

 // Copyright (c) 2014, 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 pub.command.list;
 
 import 'dart:async';
 import 'dart:collection';
 
 import '../ascii_tree.dart' as tree;
 import '../command.dart';
 import '../log.dart' as log;
 import '../package.dart';
 import '../package_graph.dart';
 import '../utils.dart';
 
 /// Handles the `deps` pub command.
 class DepsCommand extends PubCommand {
   String get description => "Print package dependencies.";
   List<String> get aliases => const ["dependencies", "tab"];
   String get usage => "pub deps";
+  String get docUrl => "http://dartlang.org/tools/pub/cmd/pub-deps.html";
 
   /// The loaded package graph.
   PackageGraph _graph;
 
   /// The [StringBuffer] used to accumulate the output.
   StringBuffer _buffer;
 
   DepsCommand() {
     commandParser.addOption("style", abbr: "s",
         help: "How output should be displayed.",
@@ skipping 146 matching lines @@
   Set<String> _getTransitiveDependencies() {
     var transitive = _graph.packages.keys.toSet();
     var root = entrypoint.root;
     transitive.remove(root.name);
     transitive.removeAll(root.dependencies.map((dep) => dep.name));
     transitive.removeAll(root.devDependencies.map((dep) => dep.name));
     transitive.removeAll(root.dependencyOverrides.map((dep) => dep.name));
     return transitive;
   }
 }