Merge http://mail-index.netbsd.org/source-changes/2013/01/22/msg040762.html
Whitespace cleanup.
Merge http://mail-index.netbsd.org/source-changes/2013/01/26/msg040896.html
RCS Id update.
Check netboot and set proper default boot device.
Merge http://mail-index.netbsd.org/source-changes/2013/03/05/msg041987.html
RCS Id update.