to_s() public

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# File lib/resolv.rb, line 2497
    def to_s # :nodoc:
      address = sprintf("%X:%X:%X:%X:%X:%X:%X:%X", *@address.unpack("nnnnnnnn"))
      unless address.sub!(/(^|:)0(:0)+(:|$)/, '::')
        address.sub!(/(^|:)0(:|$)/, '::')
      end
      return address
    end
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