From cdacaa0a298de262674a166a0434004ae8e622ac Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Thu, 28 Aug 2014 05:55:08 +0000
Subject: io.c: preserve encodings

* io.c (advice_arg_check): preserve encodings in warning messages.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47303 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 io.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

(limited to 'io.c')

diff --git a/io.c b/io.c
index 7dc1c8956c..ddd9f1a9ff 100644
--- a/io.c
+++ b/io.c
@@ -8558,9 +8558,7 @@ advice_arg_check(VALUE advice)
 	advice != sym_willneed &&
 	advice != sym_dontneed &&
 	advice != sym_noreuse) {
-	VALUE symname = rb_inspect(advice);
-	rb_raise(rb_eNotImpError, "Unsupported advice: %s",
-		 StringValuePtr(symname));
+	rb_raise(rb_eNotImpError, "Unsupported advice: %+"PRIsVALUE, advice);
     }
 }
 
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