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+Wed Nov 18 10:17:09 2009 Nobuyoshi Nakada <nobu@ruby-lang.org>
+
+ * string.c (str_utf8_nth): no count_utf8_lead_bytes_with_word
+ optimization for short string. [ruby-core:26787]
+
+ * string.c (str_utf8_offset): str_utf8_nth never return NULL.
+
Wed Nov 18 10:12:34 2009 Shugo Maeda <shugo@ruby-lang.org>
* vm_method.c (rb_undef): should raise TypeError if klass is nil.