Prefer method_defined? for the class

lib/msf/core/thread_manager.rb

@@ -59,7 +59,7 @@ class ThreadManager < Array
 
     # XXX: Preserve Ruby < 2.5 thread exception reporting behavior
     # https://ruby-doc.org/core-2.5.0/Thread.html#method-c-report_on_exception
-    if Thread.respond_to?(:report_on_exception=)
+    if Thread.method_defined?(:report_on_exception=)
       Thread.report_on_exception = false
     end
   end