From 22e47ffa435fdacc12b7c5b65f64dfba36998201 Mon Sep 17 00:00:00 2001
From: Mike McQuaid <mike@mikemcquaid.com>
Date: Sat, 21 Sep 2013 15:14:44 +0100
Subject: [PATCH] versions: add branch support in rev_list.

---
 Library/Homebrew/cmd/versions.rb | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Library/Homebrew/cmd/versions.rb b/Library/Homebrew/cmd/versions.rb
index 1dbe1a64a7..ffd2c00c8b 100644
--- a/Library/Homebrew/cmd/versions.rb
+++ b/Library/Homebrew/cmd/versions.rb
@@ -61,9 +61,9 @@ class Formula
       end
     end
 
-    def rev_list
+    def rev_list branch='HEAD'
       repository.cd do
-        `git rev-list --abbrev-commit HEAD -- #{entry_name}`.split
+        `git rev-list --abbrev-commit #{branch} -- #{entry_name}`.split
       end
     end