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+Tue Jun  4 18:41:47 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bitlength_bdigit): Fix an off-by-one error.
+
 Tue Jun  4 15:30:00 2013  Kenta Murata  <mrkn@cookpad.com>
 
 	* ext/bigdecimal/lib/bigdecimal/util.rb (Float#to_d): fix the number