Fix bad references to 'sgio'
The engine name is 'sg', so change bad references to sgio.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/README b/README
index 53cc7eb..059fead 100644
--- a/README
+++ b/README
@@ -171,8 +171,8 @@
psync for regular pread/pwrite io, vsync for regular
readv/writev (with queuing emulation) mmap for mmap'ed
io, syslet-rw for syslet driven read/write, splice for
- using splice/vmsplice, sgio for direct SG_IO io, net
- for network io, or cpuio for a cycler burner load. sgio
+ using splice/vmsplice, sg for direct SG_IO io, net
+ for network io, or cpuio for a cycler burner load. sg
only works on Linux on SCSI (or SCSI-like devices, such
as usb-storage or sata/libata driven) devices. Fio also
has a null io engine, which is mainly used for testing