Getting started guid

Hi all,

i spent some time trying to work through the getting started guide on
http://guides.rubyonrails.org/getting_started.html

I have rails 3.0.5 and ruby 1.8.7.

In my opinion the sample code
class Post < ActiveRecord::Base
  validates :name, :presence => true
  validates :title, :presence => true,
                    :length => { :minimum => 5 }
end

has an error.
It should be something like :length => {:minimum => 1, :maximum =>
100} or an exception will be thrown. Maybe this is related to the
exact combination of 1.8.7 and 3.0.5 (on gentoo). But i guess there
might be someone else stumbeling across that.

Thanks,
Gerd