zfsonlinux/zfs — pull request #1119 by imp (2012-11-29 13:53:01+00:00)
Title: vdev_id fails to handle complex device topologies

While expanding positional parameters shell requires non-single
digits to be enclosed in braces. When the SAS topology is
non-trivial the number of positional parameters generated internally
by vdev_id script (using set -- ...) easily crosses single digit limit
and vdev_id fails to generate links.