btrfs-progs: update help for device stats

Signed-off-by: David Sterba <dsterba@suse.com>
2015-08-25 17:30:37 +02:00 · 2015-08-25 17:30:37 +02:00 · 25ff5e53e0
parent cc31e6cf50
commit 25ff5e53e0
1 changed files with 3 additions and 1 deletions
--- a/cmds-device.c
+++ b/cmds-device.c
@ -349,7 +349,9 @@ out:

 static const char * const cmd_device_stats_usage[] = {
 	"btrfs device stats [-z] <path>|<device>",
-	"Show current device IO stats. -z to reset stats afterwards.",
+	"Show current device IO stats.",
+	"",
+	"-z                     show current stats and reset values to zero",
 	NULL
 };