# File lib/thor/task.rb, line 64
    def formatted_arguments(klass)
      if klass && !klass.arguments.empty?
        usage.to_s.gsub(/^#{name}/) do |match|
          match << " " << klass.arguments.map{ |a| a.usage }.join(' ')
        end
      else
        usage.to_s
      end
    end