Copyright police.

regress/set_comment_all.c

diff --git a/regress/set_comment_all.c b/regress/set_comment_all.c
index 69929c6..ae6b93c 100644
--- a/regress/set_comment_all.c
+++ b/regress/set_comment_all.c
@@ -1,6 +1,6 @@
 /*
   set_comment_all.c -- set global and file comments
-  Copyright (C) 2006-2012 Dieter Baron and Thomas Klausner
+  Copyright (C) 2006-2013 Dieter Baron and Thomas Klausner
 
   This file is part of libzip, a library to manipulate ZIP archives.
   The authors can be contacted at <libzip@nih.at>

regress/set_comment_localonly.c

diff --git a/regress/set_comment_localonly.c b/regress/set_comment_localonly.c
index 967615d..6e89961 100644
--- a/regress/set_comment_localonly.c
+++ b/regress/set_comment_localonly.c
@@ -1,6 +1,6 @@
 /*
   set_comment_localonly.c -- set file comments
-  Copyright (C) 2006-2012 Dieter Baron and Thomas Klausner
+  Copyright (C) 2006-2013 Dieter Baron and Thomas Klausner
 
   This file is part of libzip, a library to manipulate ZIP archives.
   The authors can be contacted at <libzip@nih.at>

regress/set_comment_revert.c

diff --git a/regress/set_comment_revert.c b/regress/set_comment_revert.c
index 3007a9c..e32f282 100644
--- a/regress/set_comment_revert.c
+++ b/regress/set_comment_revert.c
@@ -1,6 +1,6 @@
 /*
   set_comment_revert.c -- set global and file comments, but revert
-  Copyright (C) 2006-2012 Dieter Baron and Thomas Klausner
+  Copyright (C) 2006-2013 Dieter Baron and Thomas Klausner
 
   This file is part of libzip, a library to manipulate ZIP archives.
   The authors can be contacted at <libzip@nih.at>