Write selections parameter in spool of report

  DATA : li_tab TYPE TABLE OF trdir-name,
         infotab TYPE t_varinfo OCCURS 0 WITH HEADER LINE.

  CALL FUNCTION 'PRINT_SELECTIONS'
    EXPORTING
      mode      = li_tab
      rname     = sy-repid   "program name
      rvariante = ''         "variant name
    TABLES
      infotab   = infotab.

  LOOP AT infotab.
    WRITE / infotab-line.
  ENDLOOP.