From 51326e0b638b4b486bd5216ca7b456ae5ea0d3da Mon Sep 17 00:00:00 2001
From: Jack Nagel <jacknagel@gmail.com>
Date: Wed, 25 Jun 2014 11:19:00 -0500
Subject: [PATCH] Extend with a module instead of aliasing on the singleton
 class

---
 Library/Homebrew/cmd/doctor.rb | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/Library/Homebrew/cmd/doctor.rb b/Library/Homebrew/cmd/doctor.rb
index 59bf59c454..0bf9b89efc 100644
--- a/Library/Homebrew/cmd/doctor.rb
+++ b/Library/Homebrew/cmd/doctor.rb
@@ -1151,15 +1151,14 @@ module Homebrew
   end
 
   def inject_dump_stats checks
-    class << checks
-      alias_method :oldsend, :send
-      def send method
+    checks.extend Module.new {
+      def send(method, *)
         time = Time.now
-        oldsend(method)
+        super
       ensure
         $times[method] = Time.now - time
       end
-    end
+    }
     $times = {}
     at_exit {
       puts $times.sort_by{|k, v| v }.map{|k, v| "#{k}: #{v}"}