net: support for unix domain sockets

Signed-off-by: Jens Axboe <axboe@kernel.dk>
diff --git a/HOWTO b/HOWTO
index 24a0f3b..2e4cdbd 100644
--- a/HOWTO
+++ b/HOWTO
@@ -267,7 +267,7 @@
 		files between threads in a job or several jobs, specify
 		a filename for each of them to override the default. If
 		the ioengine used is 'net', the filename is the host, port,
-		and protocol to use in the format of =host/port/protocol.
+		and protocol to use in the format of =host,port,protocol.
 		See ioengine=net for more. If the ioengine is file based, you
 		can specify a number of files by separating the names with a
 		':' colon. So if you wanted a job to open /dev/sda and /dev/sdb