From dce7b04ea572fdd4e19b8d611625a979b48a74ce Mon Sep 17 00:00:00 2001
From: Jack Nagel <jacknagel@gmail.com>
Date: Thu, 26 Jun 2014 22:26:13 -0500
Subject: [PATCH] Simplify NoSuchKegError condition

dirs will be empty if the rack directory does not exist.
---
 Library/Homebrew/extend/ARGV.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Library/Homebrew/extend/ARGV.rb b/Library/Homebrew/extend/ARGV.rb
index c241d1fe10..7da1300015 100644
--- a/Library/Homebrew/extend/ARGV.rb
+++ b/Library/Homebrew/extend/ARGV.rb
@@ -21,7 +21,7 @@ module HomebrewArgvExtension
       rack = HOMEBREW_CELLAR/canonical_name
       dirs = rack.directory? ? rack.subdirs : []
 
-      raise NoSuchKegError.new(rack.basename.to_s) if not rack.directory? or dirs.empty?
+      raise NoSuchKegError.new(rack.basename.to_s) if dirs.empty?
 
       linked_keg_ref = HOMEBREW_REPOSITORY/"Library/LinkedKegs"/name
       opt_prefix = HOMEBREW_PREFIX/"opt"/name