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+Mon Jul 21 04:42:15 2008  Tanaka Akira  <akr@fsij.org>
+
+	* re.c (rb_reg_s_union): useless rb_enc_get call removed to prevent
+	  SEGV by Regexp.union("", nil).
+
 Sun Jul 20 22:50:11 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* compile.c (iseq_compile_each): NODE_POSTEXE should set each end