Trace upwards through call tree for id

  1. id is dummy arg 1 of calc_current_date (share/module_date_time.f);

id is an actual arg in calls to these routines from calc_current_date
  nl_get_gmt (argument 1 ; matching dummy arg is id_id with intent inout)
  nl_get_julyr (argument 1 ; matching dummy arg is id_id with intent inout)
  nl_get_julday (argument 1 ; matching dummy arg is id_id with intent inout)