drivers/net: Trim trailing whitespace

Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/net/ni52.c b/drivers/net/ni52.c
index 4d52ecf..e888923 100644
--- a/drivers/net/ni52.c
+++ b/drivers/net/ni52.c
@@ -639,7 +639,7 @@
 	/*
 	 * TDR, wire check .. e.g. no resistor e.t.c
 	 */
-	 
+
 	tdr_cmd = (struct tdr_cmd_struct *)ptr;
 
 	tdr_cmd->cmd_status	= 0;