/LOG
  /NOLOG (D)

  The  /LOG  qualifier  produces two messages on the SYS$OUTPUT device:
  the first shows the the  name of the form  being  extracted   and the
  second  shows  the  name of the  output form file.   If the /NOOUTPUT
  qualifier is specified along  with  /LOG,  the  second message is not
  printed.  The /NOLOG qualifier will disable both messages.