From 9d8c4e6279ae50b1e476ca3e2fb1f6469a3e71a5 Mon Sep 17 00:00:00 2001
From: Mike McQuaid <mike@mikemcquaid.com>
Date: Mon, 8 Aug 2016 09:31:01 +0100
Subject: [PATCH] tap: allow Homebrew developers to tap broken taps.

---
 Library/Homebrew/tap.rb | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Library/Homebrew/tap.rb b/Library/Homebrew/tap.rb
index f38df64b37..22b1232505 100644
--- a/Library/Homebrew/tap.rb
+++ b/Library/Homebrew/tap.rb
@@ -216,7 +216,9 @@ class Tap
     begin
       safe_system "git", *args
       unless Readall.valid_tap?(self, :aliases => true)
-        raise "Cannot tap #{name}: invalid syntax in tap!"
+        unless ARGV.homebrew_developer?
+          raise "Cannot tap #{name}: invalid syntax in tap!"
+        end
       end
     rescue Interrupt, ErrorDuringExecution, RuntimeError
       ignore_interrupts do