Add missing license header

jbowes · jbowes · commit deba5a190bcb · 2021-09-11T16:13:24.000-03:00
diff --git a/example_test.go b/example_test.go
@@ -1,3 +1,7 @@
+// Copyright (c) 2021 James Bowes. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file
+
 package httpsig_test
 
 import (
