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+Wed Jun  5 21:17:08 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (big_fdiv): Use nlz() instead of bdigbitsize().
+	  (bdigbitsize): Removed.
+
 Wed Jun  5 20:32:00 2013  Kenta Murata  <mrkn@cookpad.com>
 
 	* include/ruby/ruby.h: fix alignment in comment.