igb: Fix code comment

Recently added code comment was missing a space that is needed.

Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
index 340a344..ea8b9c4 100644
--- a/drivers/net/ethernet/intel/igb/igb_main.c
+++ b/drivers/net/ethernet/intel/igb/igb_main.c
@@ -1978,7 +1978,7 @@
 		}
 	}
 #endif
-	/*Re-establish EEE setting */
+	/* Re-establish EEE setting */
 	if (hw->phy.media_type == e1000_media_type_copper) {
 		switch (mac->type) {
 		case e1000_i350: