From 176e55386c9902a2fae6e841b5766eb181f58a42 Mon Sep 17 00:00:00 2001
From: Misty De Meo <mistydemeo@gmail.com>
Date: Wed, 5 Aug 2015 09:51:37 -0700
Subject: [PATCH] ARGV: don't downcase bottle filenames

Fixes Homebrew/homebrew#42470.
---
 Library/Homebrew/extend/ARGV.rb | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/Library/Homebrew/extend/ARGV.rb b/Library/Homebrew/extend/ARGV.rb
index a8eb9a5d22..663ecf89b4 100644
--- a/Library/Homebrew/extend/ARGV.rb
+++ b/Library/Homebrew/extend/ARGV.rb
@@ -213,9 +213,13 @@ module HomebrewArgvExtension
   end
 
   def downcased_unique_named
-    # Only lowercase names, not paths or URLs
+    # Only lowercase names, not paths, bottle filenames or URLs
     @downcased_unique_named ||= named.map do |arg|
-      arg.include?("/") ? arg : arg.downcase
+      if arg.include?("/") || arg.end_with?(".tar.gz")
+        arg
+      else
+        arg.downcase
+      end
     end.uniq
   end
 end