ko1	2013-05-13 15:43:08 +0900 (Mon, 13 May 2013)

  New Revision: 40688

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=40688

  Log:
    * ChangeLog: add a comment.

  Modified files:
    trunk/ChangeLog

Index: ChangeLog
===================================================================
--- ChangeLog	(revision 40687)
+++ ChangeLog	(revision 40688)
@@ -8,6 +8,7 @@ Mon May 13 15:31:10 2013  Koichi Sasada https://github.com/ruby/ruby/blob/trunk/ChangeLog#L8
 Mon May 13 15:24:16 2013  Koichi Sasada  <ko1@a...>
 
 	* gc.c (rb_data_object_alloc): check klass only if klass is not 0.
+	  klass==0 means internal object.
 
 Mon May 13 14:57:28 2013  Koichi Sasada  <ko1@a...>
 

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