--- bash-4.1/subst.c	2015-04-07 10:00:00.482931289 +0900

+++ bash-4.1/subst.c	2015-04-07 10:01:28.258111134 +0900

@@ -7039,8 +7039,6 @@ 

       ret = alloc_word_desc ();

       ret->word = temp1;

-      ret = alloc_word_desc ();

-      ret->word = temp1;

       if (temp1 && QUOTED_NULL (temp1) && (quoted & (Q_HERE_DOCUMENT|Q_DOUBLE_QUOTES)))

 	ret->flags |= W_QUOTED|W_HASQUOTEDNULL;

       return ret;