getrebar: update copyright year
diff --git a/util/getrebar b/util/getrebar
index 4aec2fe..e5c06a0 100755
--- a/util/getrebar
+++ b/util/getrebar
@@ -2,7 +2,7 @@
 %% -*- mode: erlang;erlang-indent-level: 4;indent-tabs-mode: nil -*-
 %% ex: ft=erlang ts=4 sw=4 et
 %%
-%% Copyright (c) 2010-2017 Tuncer Ayaz
+%% Copyright (c) 2010-2018 Tuncer Ayaz
 %% Copyright (c) 2014 Kenji Rikitake
 %%
 %% Permission to use, copy, modify, and distribute this software for any