016 writes past EOF which isn't support by most protocols, so limit
it to file and sheepdog, which explicitly support it.
Pointed out by Josh Durgin <josh.durgin@dreamhost.com>.
Signed-off-by: Christoph Hellwig <hch@lst.de>
. ./common.rc
. ./common.filter
-# currently raw is the only protocol we support
_supported_fmt raw
-_supported_proto generic
+_supported_proto file sheepdog
_supported_os Linux