From cf183a58de690b6b4df1a368ce99191742356119 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Tue, 8 Dec 2015 23:41:27 +0000
Subject: [PATCH] string.c: use rb_id_encoding

* string.c (rb_str_init): rb_id_encoding() returns same ID with
  caching.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52982 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 string.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/string.c b/string.c
index c39e34c1a3..e6df91d512 100644
--- a/string.c
+++ b/string.c
@@ -1340,7 +1340,7 @@ rb_str_init(int argc, VALUE *argv, VALUE str)
     int n;
 
     if (!keyword_ids[0])
-	keyword_ids[0] = rb_intern("encoding");
+	keyword_ids[0] = rb_id_encoding();
 
     n = rb_scan_args(argc, argv, "01:", &orig, &opt);
     if (argc > 0 && n == 1)