Land rapid7#7627, Fix typo in payloads/linux/armle/mettle

Author: wwebb-r7

modules/payloads/stages/linux/armle/mettle.rb

@@ -82,6 +82,6 @@ def handle_intermediate_stage(conn, payload)
   def generate_stage(opts = {})
     opts[:uuid] ||= generate_payload_uuid
     MetasploitPayloads::Mettle.new('armv5l-linux-musleabi', opts.slice(:uuid, :url, :debug, :log_file)).
-      to_bininary :process_image
+      to_binary :process_image
   end
 end