# File lib/vagrant-lxc/driver.rb, line 261
      def write_customizations(customizations)
        customizations = customizations.map do |key, value|
          "lxc.#{key}=#{value}"
        end
        customizations.unshift '# VAGRANT-BEGIN'
        customizations      << "# VAGRANT-END\n"

        contents = config_string
        contents << customizations.join("\n")

        write_config(contents)
      end