From aaa295e3b9634e442e7ec6b14ae3adf577c8806f Mon Sep 17 00:00:00 2001
From: Florian Holzhauer <fh-github@fholzhauer.de>
Date: Wed, 23 Apr 2014 21:48:08 -0700
Subject: [PATCH] [COOK-4512] Bugfix: Use empty PATH if PATH is nil

Signed-off-by: Sean OMeara <someara@opscode.com>
---
 libraries/helpers.rb | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libraries/helpers.rb b/libraries/helpers.rb
index 6fe95a97..a7f9655c 100644
--- a/libraries/helpers.rb
+++ b/libraries/helpers.rb
@@ -31,6 +31,7 @@ def apt_installed?
     #
     # @return [String, nil]
     def which(cmd)
+      ENV["PATH"] = "" if ENV["PATH"].nil?
       paths = (ENV['PATH'].split(::File::PATH_SEPARATOR) + %w(/bin /usr/bin /sbin /usr/sbin))
 
       paths.each do |path|