Two more fixes, Arch and unneeded include.

modules/exploits/multi/http/rails_secret_deserialization.rb

@@ -96,7 +96,6 @@ class Metasploit3 < Msf::Exploit::Remote
 
 	end
 
-	include Msf::Exploit::CmdStagerTFTP
 	include Msf::Exploit::Remote::HttpClient
 
 	def initialize(info = {})
@@ -120,8 +119,8 @@ class Metasploit3 < Msf::Exploit::Remote
 					['URL', 'http://robertheaton.com/2013/07/22/how-to-hack-a-rails-app-using-its-secret-token/']
 				],
 			'DisclosureDate' => 'Apr 11 2013',
-			'Platform'       => [ 'ruby'],
-			'Arch'           => [ 'ruby'],
+			'Platform'       => 'ruby',
+			'Arch'           => ARCH_RUBY,
 			'Privileged'     => false,
 			'Targets'        =>	[ ['Automatic', {} ] ],
 			'DefaultTarget' => 0))