From 5723d9fd347f4a3e309cfbae93979ae70577aa28 Mon Sep 17 00:00:00 2001
From: kazu <kazu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Fri, 29 Sep 2017 11:00:00 +0000
Subject: [PATCH] Use unpack1 instead of unpack and `[0]`

[Feature #13943][ruby-core:83027]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60061 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 lib/erb.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/erb.rb b/lib/erb.rb
index 74974696d7..47bb5022cc 100644
--- a/lib/erb.rb
+++ b/lib/erb.rb
@@ -994,7 +994,7 @@ class ERB
     #
     def url_encode(s)
       s.to_s.b.gsub(/[^a-zA-Z0-9_\-.~]/n) { |m|
-        sprintf("%%%02X", m.unpack("C")[0])
+        sprintf("%%%02X", m.unpack1("C"))
       }
     end
     alias u url_encode