[libata] Trim trailing whitespace.
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 563885c..0ddf16c 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -198,7 +198,7 @@
 
 	/* host set flags */
 	ATA_HOST_SIMPLEX	= (1 << 0),	/* Host is simplex, one DMA channel per host only */
-	
+
 	/* various lengths of time */
 	ATA_TMOUT_BOOT		= 30 * HZ,	/* heuristic */
 	ATA_TMOUT_BOOT_QUICK	= 7 * HZ,	/* heuristic */