merge revision(s) r32791:

	* insns.def (concatstrings): don't use initial ASCII-8BIT string.
	  [ruby-core:38635] [Bug #5126]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_3@33236 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 2 insertions, 2 deletions

diff --git a/insns.def b/insns.def
index df36c6323b..ea00e413a3 100644
--- a/insns.def
+++ b/insns.def
@@ -392,9 +392,9 @@ concatstrings
 (...)
 (VALUE val) // inc += 1 - num;
 {
-    rb_num_t i = num;
+    rb_num_t i = num - 1;
 
-    val = rb_str_new(0, 0);
+    val = rb_str_resurrect(TOPN(i));
     while (i-- > 0) {
 	const VALUE v = TOPN(i);
 	rb_str_append(val, v);