The rule is that build directives can be preceded only
by blank lines and other line comments, not /* */ comments.
R=golang-dev, adg, bradfitz
CC=golang-dev
https://golang.org/cl/
5619045
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
-/*
-Input to cgo -godefs. See also mkerrors.sh and mkall.sh
-*/
+// Input to cgo -godefs. See also mkerrors.sh and mkall.sh
// +build ignore