libata-sff: trivial corrections to Kconfig help text

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig
index 73f8833..aa85a98 100644
--- a/drivers/ata/Kconfig
+++ b/drivers/ata/Kconfig
@@ -168,10 +168,10 @@
 	default y
 	help
 	  This option adds support for SFF ATA controllers with BMDMA
-	  capability.  BMDMA stands for bus-master DMA and the
-	  de-facto DMA interface for SFF controllers.
+	  capability.  BMDMA stands for bus-master DMA and is the
+	  de facto DMA interface for SFF controllers.
 
-	  If unuser, say Y.
+	  If unsure, say Y.
 
 if ATA_BMDMA