From 60c49a85d0bc72a8e831ff64b0520e2640be5f58 Mon Sep 17 00:00:00 2001
From: Anton Batenev <antonbatenev@yandex.ru>
Date: Wed, 10 Jul 2013 17:47:38 +0400
Subject: [PATCH] Refactoring #1157

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

diff --git a/lib/email/message_builder.rb b/lib/email/message_builder.rb
index e376450f107..3d0687ee0f4 100644
--- a/lib/email/message_builder.rb
+++ b/lib/email/message_builder.rb
@@ -87,7 +87,7 @@ module Email
           value = header[1].strip
           result[name] = value if name.length > 0 && value.length > 0
         end
-      } if !string.nil?
+      } unless string.nil?
       result
     end