Fix date in header

diff --git a/include/deal.II/matrix_free/tensor_product_kernels.h b/include/deal.II/matrix_free/tensor_product_kernels.h
index 98434e847b522996d1bfbb83e2e40098aa9667cf..761f08188f3a1adf4746c24ba1852e0a67d62239 100644 (file)
--- a/include/deal.II/matrix_free/tensor_product_kernels.h
+++ b/include/deal.II/matrix_free/tensor_product_kernels.h
@@ -1,6 +1,6 @@
 // ---------------------------------------------------------------------
 //
-// Copyright (C) 2017 - 2018-2018 by the deal.II authors
+// Copyright (C) 2017 - 2018 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //