longword-integer-value
    OpenVMS usage:longword_signed
    type:         longword (signed)
    access:       read only
    mechanism:    by reference
    Value that OTS$CVT_L_TL converts to an ASCII text string. The
    longword-integer-value argument is the address of a signed
    longword containing this integer value.
 fixed-length-resultant-string
    OpenVMS usage:char_string
    type:         character string
    access:       write only
    mechanism:    by descriptor, fixed length
    Output string that OTS$CVT_L_TL creates when it converts
    the integer value to an ASCII text string. The fixed-length-
    resultant-string argument is the address of a descriptor pointing
    to this ASCII text string.
    The output string is assumed to be of fixed length (CLASS_S
    descriptor).
    If bit 0 of longword-integer-value is set, OTS$CVT_L_TL stores
    the character T in the rightmost character of fixed-length-
    resultant-string. If bit 0 is clear, it stores the character
    F. In either case, it fills the remaining characters of fixed-
    length-resultant-string with blanks.