/usr/share/go-1.8/test/fixedbugs/issue13266.go is in golang-1.8-src 1.8.3-2ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 | // errorcheck
// Copyright 2015 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.
// Offending character % must not be interpreted as
// start of format verb when emitting error message.
package% // ERROR "unexpected %"
|