From bfb44d9e6723f97ceddcac2774bd89146cad0330 Mon Sep 17 00:00:00 2001
From: Xu Cheng <xucheng@me.com>
Date: Tue, 8 Mar 2016 21:53:29 +0800
Subject: [PATCH] migrator: use Tap#core_tap?

---
 Library/Homebrew/migrator.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Library/Homebrew/migrator.rb b/Library/Homebrew/migrator.rb
index 3389d57d76..5d6f5d4e6d 100644
--- a/Library/Homebrew/migrator.rb
+++ b/Library/Homebrew/migrator.rb
@@ -27,7 +27,7 @@ class Migrator
 
   class MigratorDifferentTapsError < RuntimeError
     def initialize(formula, tap)
-      msg = if tap == "Homebrew/homebrew"
+      msg = if tap.core_tap?
         "Please try to use #{formula.oldname} to refer the formula.\n"
       elsif tap
         "Please try to use fully-qualified #{tap}/#{formula.oldname} to refer the formula.\n"