Update copyright dates

1 files changed, 1 insertions, 1 deletions

diff --git a/opt.c b/opt.c
index 6875e92..5e3dc19 100644
--- a/opt.c
+++ b/opt.c
@@ -1,6 +1,6 @@
 /****************************************************************************
  * bfs                                                                      *
- * Copyright (C) 2017 Tavian Barnes <tavianator@tavianator.com>             *
+ * Copyright (C) 2017-2018 Tavian Barnes <tavianator@tavianator.com>        *
  *                                                                          *
  * Permission to use, copy, modify, and/or distribute this software for any *
  * purpose with or without fee is hereby granted.                           *