net: 3com: 3c59x: clean up inconsistent indenting

There is a statement that is not indented correctly, add in the
missing tab.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/3com/3c59x.c

@@ -2786,7 +2786,7 @@ static void
 dump_tx_ring(struct net_device *dev)
 {
 	if (vortex_debug > 0) {
-	struct vortex_private *vp = netdev_priv(dev);
+		struct vortex_private *vp = netdev_priv(dev);
 		void __iomem *ioaddr = vp->ioaddr;
 
 		if (vp->full_bus_master_tx) {