Update two modules to use the new unified cmdstager

modules/exploits/linux/http/fritzbox_echo_exec.rb

@@ -9,7 +9,7 @@ class Metasploit3 < Msf::Exploit::Remote
   Rank = ExcellentRanking
 
   include Msf::Exploit::Remote::HttpClient
-  include Msf::Exploit::CmdStagerEcho
+  include Msf::Exploit::CmdStager
 
   def initialize(info = {})
     super(update_info(info,
@@ -59,6 +59,7 @@ class Metasploit3 < Msf::Exploit::Remote
             }
           ],
         ],
+      'CmdStagerFlavor' => 'echo',
       'DefaultTarget'   => 0
       ))
   end

modules/exploits/linux/http/linksys_themoon_exec.rb

@@ -9,7 +9,7 @@ class Metasploit3 < Msf::Exploit::Remote
   Rank = ExcellentRanking
 
   include Msf::Exploit::Remote::HttpClient
-  include Msf::Exploit::CmdStagerEcho
+  include Msf::Exploit::CmdStager
 
   def initialize(info = {})
     super(update_info(info,
@@ -62,6 +62,7 @@ class Metasploit3 < Msf::Exploit::Remote
             }
           ],
         ],
+      'CmdStagerFlavor' => 'echo',
       'DefaultTarget'   => 0
       ))
   end