From a6c5fca3a907680866e2d9610adf2e87dba1d91f Mon Sep 17 00:00:00 2001
From: Xu Cheng <xucheng@me.com>
Date: Fri, 18 Sep 2015 19:29:48 +0800
Subject: [PATCH] test-bot: use ruby method instead of shellout to remove files

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

diff --git a/Library/Homebrew/cmd/test-bot.rb b/Library/Homebrew/cmd/test-bot.rb
index 471b772bf1..ba8d3e2968 100644
--- a/Library/Homebrew/cmd/test-bot.rb
+++ b/Library/Homebrew/cmd/test-bot.rb
@@ -967,7 +967,7 @@ module Homebrew
       end
     end
 
-    safe_system "rm -rf #{HOMEBREW_CACHE}/*" if ARGV.include? "--clean-cache"
+    HOMEBREW_CACHE.children.each(&:rmtree) if ARGV.include? "--clean-cache"
 
     Homebrew.failed = any_errors
   end