rails console loads "production" env with "t" argument

The console command regards the environment argument as the following:

% rails console t
Loading production environment (Rails 3.0.0)
>> Rails.env
=> "production"

% rails console d
Loading production environment (Rails 3.0.0)
>> Rails.env
=> "production"

This behavior is caused by this logic:

%w(production development test).find { |e| e.index(env) }

because both 't' and 'd' are included in 'production'.

I guess this is not intentional, so attached a patch to forward match the argument.