This is now throwing an error when we run chef-client -i

Broken NagiosLibraryMachine.rb

class Machine < Struct.new(:name,:ipaddress,:role,:env)
    def print_machine_csv
        name.length==0 ? printf(",") : printf("\"%s\",", name)
        address.length==0 ? printf(",") : printf("\"%s\",", address)
        role.length==0 ? printf(",") : printf("\"%s\",", role)
        env.length==0 ? printf(",") : printf("\"%s\",", env)
        printf("\n")
    end
end unless defined? Machine

require 'csv'
class NewMachine
  attr_accessor :name, :ipaddress, :role, :env

  def initialize(name, ipaddress, role, env)
    @name, @ipaddress, @role, @env = name, ipaddress, role, env
  end

  def to_csv
    [name, ipaddress, role, env].to_csv
  end
end

usage.txt

ruby-1.9.2-p180 :018 > NewMachine.new
ArgumentError: wrong number of arguments (0 for 4)
        from (irb):10:in `initialize'
        from (irb):18:in `new'
        from (irb):18
        from /Users/aj/.rvm/rubies/ruby-1.9.2-p180/bin/irb:16:in `<main>'
ruby-1.9.2-p180 :019 > NewMachine.new("test", "foo", "bar", "baz")
 => #<NewMachine:0x00000100c90508 @name="test", @ipaddress="foo", @role="bar", @env="baz"> 
ruby-1.9.2-p180 :020 > m = NewMachine.new("test", "foo", "bar", "baz")
 => #<NewMachine:0x00000100c916d8 @name="test", @ipaddress="foo", @role="bar", @env="baz"> 
ruby-1.9.2-p180 :021 > m.to_csv
 => "test,foo,bar,baz\n"