Library /sys$common/syshlp/acledt.hlb DEFAULT_FLAG  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    OPTION=DEFAULT

    Indicates that an ACE is to be included in the ACL of any files
    created within a directory. When the entry is propagated, the
    Default attribute is removed from the ACE of the created file.
    This attribute is valid for directory files only.