Missing tmpfiles.d paths (including per-user paths)

[luke-jr]

The linked documentation says these paths should be processed:

~/.config/user-tmpfiles.d/*.conf
$XDG_RUNTIME_DIR/user-tmpfiles.d/*.conf
~/.local/share/user-tmpfiles.d/*.conf
/usr/share/user-tmpfiles.d/*.conf

But opentmpfiles seems to ignore them.