C--------------------------------------------------------------------------
        subroutine ftpkyu(ounit,keywrd,comm,status)

C       write a null-valued keyword to a header record 
C
C       ounit   i  fortran output unit number
C       keywrd  c  keyword name    ( 8 characters, cols.  1- 8)
C       comm    c  keyword comment (47 characters, cols. 34-80)
C       OUTPUT PARAMETERS
C       status  i  output error status (0 = ok)
C
C       written by Wm Pence, HEASARC/GSFC, July 1997

        character*(*) keywrd,comm
        integer ounit,status
        character keynam*8,card*80
        
        if (status .gt. 0)return

        keynam=keywrd
        card=keynam//'=                      / '//comm

        call ftprec(ounit,card,status)
        end