OPT_PROTOCOL difficulty in mysql-gem.

test-gem-mysql.rb

#!/opt/chef/embedded/bin/ruby
require 'mysql'
require 'optparse'

options = {:localhost => '127.0.0.1'}
OptionParser.new do |opts|
    opts.on("-l", "Use localhost instead of 127.0.0.1") do |l|
    options[:localhost] = 'localhost'
  end
end.parse!

connection = ::Mysql.init
connection.options(::Mysql::OPT_PROTOCOL, 1)
connection.connect(
                   options[:localhost],
                   'test_user',
                   'user_passwd',
                   nil,
                   3306,
                   nil
                   )
connection.close