class Thor

def help(task = nil)
  if task
    if task.include? ?:
      task = self.class[task]
      namespace = true
    else
      task = self.class.tasks[task]
    end
    puts task.formatted_usage(namespace)
    puts task.description
  else
    puts "Options"
    puts "-------"
    self.class.tasks.each do |_, task|
      format = "%-" + (self.class.maxima.usage + self.class.maxima.opt + 4).to_s + "s"
      print format % ("#{task.formatted_usage}")      
      puts  task.description.split("\n").first
    end
  end
end