Library /sys$common/syshlp/uafhelp.hlb MODIFY, /IDENTIFIER, Qualifiers, /HOLDER  *Conan The Librarian (sorry for the slow response - running on an old VAX)

       /HOLDER=username

    Specifies the holder of an identifier whose attributes are to be
    modified. The /HOLDER qualifier is used only in conjunction with
    the /ATTRIBUTES qualifier.

    If you specify /HOLDER, the /NAME and /VALUE qualifiers are
    ignored.