From 89d6841175f4e3a853c1dfc5c03ee9314fe984c4 Mon Sep 17 00:00:00 2001
From: ryan <ryan@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Wed, 5 Jan 2011 05:18:48 +0000
Subject: [PATCH] Error#to_s should ensure that the value returned is a string.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@30455 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 error.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/error.c b/error.c
index ab252a6d6b..b58f0f76d5 100644
--- a/error.c
+++ b/error.c
@@ -524,8 +524,7 @@ exc_to_s(VALUE exc)
     VALUE mesg = rb_attr_get(exc, rb_intern("mesg"));
 
     if (NIL_P(mesg)) return rb_class_name(CLASS_OF(exc));
-    OBJ_INFECT(mesg, exc);
-    return mesg;
+    return rb_String(mesg);
 }
 
 /*