Improve wording on terse Total IO (KB) field

Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
diff --git a/HOWTO b/HOWTO
index 724b604..b67a201 100644
--- a/HOWTO
+++ b/HOWTO
@@ -1349,13 +1349,13 @@
 
 	version, jobname, groupid, error
 	READ status:
-		KB IO, bandwidth (KB/sec), runtime (msec)
+		Total IO (KB), bandwidth (KB/sec), runtime (msec)
 		Submission latency: min, max, mean, deviation
 		Completion latency: min, max, mean, deviation
 		Total latency: min, max, mean, deviation
 		Bw: min, max, aggregate percentage of total, mean, deviation
 	WRITE status:
-		KB IO, bandwidth (KB/sec), runtime (msec)
+		Total IO (KB), bandwidth (KB/sec), runtime (msec)
 		Submission latency: min, max, mean, deviation
 		Completion latency: min, max, mean, deviation
 		Total latency: min, max, mean, deviation