[libata] trim trailing whitespace

Most of these contributed by that mysterious figger known as A.C.

Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/ata/sata_via.c b/drivers/ata/sata_via.c
index d3d5c0d..038d49d 100644
--- a/drivers/ata/sata_via.c
+++ b/drivers/ata/sata_via.c
@@ -330,7 +330,7 @@
 {
 	struct ata_probe_ent *probe_ent;
 	struct ata_port_info *ppi[2];
-	
+
 	ppi[0] = ppi[1] = &vt6420_port_info;
 	probe_ent = ata_pci_init_native_mode(pdev, ppi, ATA_PORT_PRIMARY | ATA_PORT_SECONDARY);
 	if (!probe_ent)