[netdrvr] Trim trailing whitespace for several drivers

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
diff --git a/drivers/net/s2io.h b/drivers/net/s2io.h
index 0709ebae..58229dc 100644
--- a/drivers/net/s2io.h
+++ b/drivers/net/s2io.h
@@ -747,7 +747,7 @@
 
 	/* interface MTU value */
         unsigned mtu;
-    
+
 	/* Buffer Address store. */
 	struct buffAdd **ba;