From e53d102a2c0c5659120b82ff813349cb4fac9263 Mon Sep 17 00:00:00 2001
From: Tom Burns <tom.burns@jadedpixel.com>
Date: Wed, 30 Jul 2014 14:59:56 +0000
Subject: [PATCH] use 'unless' instead of 'if !' for simple conditional

---
 lib/liquid/context.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/liquid/context.rb b/lib/liquid/context.rb
index 94bd4f5..6e8ceb8 100644
--- a/lib/liquid/context.rb
+++ b/lib/liquid/context.rb
@@ -151,7 +151,7 @@ module Liquid
 
     # Only allow String, Numeric, Hash, Array, Proc, Boolean or <tt>Liquid::Drop</tt>
     def []=(key, value)
-      if !@this_stack_used
+      unless @this_stack_used
         @this_stack_used = true
         push({})
       end