walkert: Add the copyright

Change-Id: Ifccb053c0aa337a103be721562a380978c0874e1
Reviewed-on: https://go-review.googlesource.com/48717
Reviewed-by: Han-Wen Nienhuys <hanwen@google.com>
diff --git a/walkert/main.go b/walkert/main.go
new file mode 100644
index 0000000..ecda1d7
--- /dev/null
+++ b/walkert/main.go
@@ -0,0 +1,14 @@
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package main
+
+import (
+	"fmt"
+)
+
+func main() {
+	fmt.Println("Hello from walkert!")
+	fmt.Println("We'll always have Denver..")
+}