update copyrights for 2018

Using update-copyrights from gnulib

While we're at it, use the SPDX identifier for AGPL-3.0+ to
ease mechanical processing.

1 files changed, 1 insertions, 1 deletions

diff --git a/t/httpd.t b/t/httpd.t
index d0ce3943..f33c0969 100644
--- a/t/httpd.t
+++ b/t/httpd.t
@@ -1,4 +1,4 @@
-# Copyright (C) 2016 all contributors <meta@public-inbox.org>
+# Copyright (C) 2016-2018 all contributors <meta@public-inbox.org>
 # License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
 use strict;
 use warnings;