fix error log content in start.go

op-node/rollup/sync/start.go

@@ -207,7 +207,7 @@ func FindL2Heads(ctx context.Context, cfg *rollup.Config, l1 L1Chain, l2 L2Chain
 		// Don't traverse further than the finalized head to find a safe head
 		if n.Number == result.Finalized.Number {
 			lgr.Info("Hit finalized L2 head, returning immediately", "unsafe", result.Unsafe, "safe", result.Safe,
-				"finalized", result.Finalized, "unsafe_origin", result.Unsafe.L1Origin, "unsafe_origin", result.Safe.L1Origin)
+				"finalized", result.Finalized, "unsafe_origin", result.Unsafe.L1Origin, "safe_origin", result.Safe.L1Origin)
 			result.Safe = n
 			return result, nil
 		}