tweak copyright date

diff --git a/src/tail.c b/src/tail.c
index 0d0f80a..b3441a1 100644 (file)
--- a/src/tail.c
+++ b/src/tail.c
@@ -1,5 +1,5 @@
 /* tail -- output the last part of file(s)
-   Copyright (C) 89, 90, 91, 1995-2000 Free Software Foundation, Inc.
+   Copyright (C) 1989, 90, 91, 1995-2000 Free Software Foundation, Inc.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by