* parse.y (literal_concat_string): wrong optimization.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@2644 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 2 deletions

diff --git a/parse.y b/parse.y
index ef5db61dfb..d0dac69d92 100644
--- a/parse.y
+++ b/parse.y
@@ -4367,8 +4367,7 @@ literal_concat_string(head, tail, str)
 		head->nd_alen += 1;
 	    }
 	    if (!tail) tail = NEW_STR(str);
-	    last1->nd_next = NEW_LIST(tail);
-	    head->nd_alen += 1;
+	    list_append(head, tail);
 	    return head;
 	}
     }