itch: add main.go

Change-Id: I9cff1521c1958f935bc58dabf3e566ffde553b74
Reviewed-on: https://go-review.googlesource.com/48787
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

itch/main.go

@@ -0,0 +1,11 @@
+// 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("gopher scratched!")
+}