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+Fri Oct 14 17:20:24 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/optparse.rb (make_switch, parse_in_order): unify underscores
+	  to hyphens.
+
 Fri Oct 14 10:48:37 2016  Eric Wong  <e@80x24.org>
 
 	* lib/webrick/utils.rb (TimeoutHandler): use monotonic clock