Raise copyright years

diff --git a/bin/bin/docstringer.pl b/bin/bin/docstringer.pl
index d5b344142173aa8045c59c247bf171105f2d06c8..3484864a55278ada1752e9be53e8b98ad3d61ef2 100755 (executable)
--- a/bin/bin/docstringer.pl
+++ b/bin/bin/docstringer.pl
@@ -1,7 +1,7 @@
 #!/usr/bin/env perl
 # Simple script for substitute placeholders in Texinfo files with
 # docstring values found in source code.
-# Copyright (C) 2020-2022 Sergey Matveev (stargrave@stargrave.org)
+# Copyright (C) 2020-2023 Sergey Matveev (stargrave@stargrave.org)
 #
 # If you C source code contains:
 #