From 5b828d4265adf06adc4eff6472a89038035ae833 Mon Sep 17 00:00:00 2001
From: Martin Afanasjew
Date: Fri, 20 Nov 2015 20:56:23 +0100
Subject: bin/brew: avoid unnecessary 'tr' invocation

This reduces the number of processes that need to be forked. If
libtool's `config.guess` is to be trusted, there was never another
spelling/capitalization other that `Darwin`.
---
 bin/brew | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/bin/brew b/bin/brew
index c3468aaac..37f918b56 100755
--- a/bin/brew
+++ b/bin/brew
@@ -28,8 +28,7 @@ fi
 
 if [ -z "$HOMEBREW_RUBY_PATH" ]
 then
-  BREW_SYSTEM="$(uname -s | tr "[:upper:]" "[:lower:]")"
-  if [ "$BREW_SYSTEM" = "darwin" ]
+  if [ "$(uname -s)" = "Darwin" ]
   then
     HOMEBREW_RUBY_PATH="/System/Library/Frameworks/Ruby.framework/Versions/Current/usr/bin/ruby"
   else
-- 
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