From 68c7e1e30cbb96eee50472c19f866414188a5d65 Mon Sep 17 00:00:00 2001
From: Jack Nagel <jacknagel@gmail.com>
Date: Tue, 17 Mar 2015 21:37:03 -0400
Subject: [PATCH] Add protected reader for version value

---
 Library/Homebrew/version.rb | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/Library/Homebrew/version.rb b/Library/Homebrew/version.rb
index 480f23521f..be74a2cc73 100644
--- a/Library/Homebrew/version.rb
+++ b/Library/Homebrew/version.rb
@@ -192,7 +192,7 @@ class Version
   end
 
   def head?
-    @version == 'HEAD'
+    version == "HEAD"
   end
 
   def <=>(other)
@@ -207,16 +207,18 @@ class Version
   alias_method :eql?, :==
 
   def hash
-    @version.hash
+    version.hash
   end
 
   def to_s
-    @version.dup
+    version.dup
   end
   alias_method :to_str, :to_s
 
   protected
 
+  attr_reader :version
+
   def begins_with_numeric?
     tokens.first.numeric?
   end
@@ -236,7 +238,7 @@ class Version
   end
 
   def tokenize
-    @version.scan(SCAN_PATTERN).map! do |token|
+    version.scan(SCAN_PATTERN).map! do |token|
       case token
       when /\A#{AlphaToken::PATTERN}\z/o   then AlphaToken
       when /\A#{BetaToken::PATTERN}\z/o    then BetaToken