From 7e24aacf8bd3f6bc45ba7d42263d70dae33d5b24 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Tue, 30 Aug 2016 06:22:30 +0000
Subject: Use qualified names

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56037 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 lib/tracer.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'lib/tracer.rb')

diff --git a/lib/tracer.rb b/lib/tracer.rb
index fd45f003c8..24a5313f4c 100644
--- a/lib/tracer.rb
+++ b/lib/tracer.rb
@@ -91,7 +91,7 @@ class Tracer
   Tracer::display_thread_id = true
   Tracer::display_c_call = false
 
-  @stdout_mutex = Mutex.new
+  @stdout_mutex = Thread::Mutex.new
 
   # Symbol table used for displaying trace information
   EVENT_SYMBOL = {
-- 
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