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+Fri Oct  5 04:02:39 2007  Akinori MUSHA  <knu@iDaemons.org>
+
+	* lib/ipaddr.rb (in_addr, in6_addr, addr_mask): Make some minor
+	  code optimization.
+
 Fri Oct  5 03:25:51 2007  Akinori MUSHA  <knu@iDaemons.org>
 
 	* lib/ipaddr.rb (<=>): Implement IPAddr#<=> and make IPAddr