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+Sun Mar 20 23:09:34 2011  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* ext/date/date_strftime.c: checks duplicated modifiers.
+
 Sun Mar 20 22:32:30 2011  Tadayoshi Funaba  <tadf@dotrb.org>
 
 	* ext/date/date_strftime.c: removed unused code and arguments.