# File lib/rvm/environment/utility.rb, line 146
    def hash_to_options(options)
      result = []
      options.each_pair do |key, value|
        real_key = "--#{key.to_s.gsub("_", "-")}"
        if value == true
          result << real_key
        elsif value != false
          result << real_key
          result << value.to_s
        end
      end
      result
    end