igb: fix various indentation issues

There are some lines that have indentation issues, fix these
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

drivers/net/ethernet/intel/igb/igb_ethtool.c

@@ -3158,8 +3158,8 @@ static int igb_set_eee(struct net_device *netdev,
 	} else if (!edata->eee_enabled) {
 		dev_err(&adapter->pdev->dev,
 			"Setting EEE options are not supported with EEE disabled\n");
-			return -EINVAL;
-		}
+		return -EINVAL;
+	}
 
 	adapter->eee_advert = ethtool_adv_to_mmd_eee_adv_t(edata->advertised);
 	if (hw->dev_spec._82575.eee_disable != !edata->eee_enabled) {