HOWTO: indentation fix

Signed-off-by: Jens Axboe <axboe@kernel.dk>
diff --git a/HOWTO b/HOWTO
index d5be376..d5fa987 100644
--- a/HOWTO
+++ b/HOWTO
@@ -272,17 +272,17 @@
 		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
 		as the two working files, you would use
-		filename=/dev/sda:/dev/sdb. On Windows, disk devices are accessed
-		as \\.\PhysicalDrive0 for the first device, \\.\PhysicalDrive1
-		for the second etc.
-		Note: Windows and FreeBSD prevent write access to areas of the disk
-		containing in-use data (e.g. filesystems).
-		If the wanted filename does need to include a colon, then escape that
- 		with a '\' character.
-		For instance, if the filename is "/dev/dsk/foo@3,0:c",
-		then you would use filename="/dev/dsk/foo@3,0\:c".
-		'-' is a reserved name, meaning stdin or stdout. Which of the
-		two depends on the read/write direction set.
+		filename=/dev/sda:/dev/sdb. On Windows, disk devices are
+		accessed as \\.\PhysicalDrive0 for the first device,
+		\\.\PhysicalDrive1 for the second etc. Note: Windows and
+		FreeBSD prevent write access to areas of the disk containing
+		in-use data (e.g. filesystems).
+		If the wanted filename does need to include a colon, then
+		escape that with a '\' character. For instance, if the filename
+		is "/dev/dsk/foo@3,0:c", then you would use
+		filename="/dev/dsk/foo@3,0\:c". '-' is a reserved name, meaning
+		stdin or stdout. Which of the two depends on the read/write
+		direction set.
 
 opendir=str	Tell fio to recursively add any file it can find in this
 		directory and down the file system tree.