Index: vendor/plugins/engines/tasks/engines.rake
===================================================================
--- vendor/plugins/engines/tasks/engines.rake	(Revision 2483)
+++ vendor/plugins/engines/tasks/engines.rake	(Arbeitskopie)
@@ -44,7 +44,7 @@
     end
 
     desc 'Migrate a specified plugin.'
-    task({:plugin => :environment}, :name, :version) do |task, args|
+    task :plugin, [:name, :version] => :environment do |task, args|
       name = args[:name] || ENV['NAME']
       if plugin = Engines.plugins[name]
         version = args[:version] || ENV['VERSION']