change exitfunc to thread

modules/exploits/linux/ssh/quantum_vmpro_backdoor.rb

@@ -31,7 +31,7 @@ class Metasploit3 < Msf::Exploit::Remote
         ],
       'DefaultOptions'  =>
         {
-          'EXITFUNC' => "thread"
+          'EXITFUNC' => 'thread'
         },
       'Payload'        =>
         {

modules/exploits/linux/ssh/symantec_smg_ssh.rb

@@ -36,7 +36,7 @@ class Metasploit3 < Msf::Exploit::Remote
         ],
       'DefaultOptions'  =>
         {
-          'EXITFUNC' => "thread"
+          'EXITFUNC' => 'thread'
         },
       'Payload'        =>
         {