Add WfsDelay back to drupal_drupalgeddon2

And bump it to 10, though 2 worked in testing.

modules/exploits/unix/webapp/drupal_drupalgeddon2.rb

@@ -122,6 +122,7 @@ class MetasploitModule < Msf::Exploit::Remote
         ]
       ],
       'DefaultTarget'  => 0, # Automatic (PHP In-Memory)
+      'DefaultOptions' => {'WfsDelay' => 10},
       'Notes'          => {'AKA' => ['SA-CORE-2018-002', 'Drupalgeddon 2']}
     ))