def unset(*options)
      options.flatten
             .sort_by { |key| OPTION_ORDER.find_index(key) || -1 }
             .each { |key| stream_puts "unset #{OptionHandling.string_key(key)}" }
      self
    end
def unset(*options)
      options.flatten
             .sort_by { |key| OPTION_ORDER.find_index(key) || -1 }
             .each { |key| stream_puts "unset #{OptionHandling.string_key(key)}" }
      self
    end
Unset options

 @param *options [Sequence of Symbol] each symbol considered as option key
 @return [Terminal] self