Prevent this from changing cache size.

Author: joevennix

lib/msf/core/payload/osx.rb

@@ -73,6 +73,10 @@ def initialize(info = {})
     ret
   end
 
+  def generate(*args)
+    apply_prepends(super(*args))
+  end
+
   def apply_prepends(buf)
     test_arch = [ *(self.arch) ]
     pre = ''