Refactor close handling

Author: jvazquez-r7

lib/msf/core/exploit/smb/server/share/command/close.rb

@@ -9,6 +9,10 @@ module Close
           # Responds to a client CLOSE request
           #
           def smb_cmd_close(c, buff)
+            send_close_res(c)
+          end
+
+          def send_close_res(c)
             pkt = CONST::SMB_CLOSE_RES_PKT.make_struct
             smb_set_defaults(c, pkt)