The letter is $A, not $O.
($O is set accidentally, but not for long.)
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/
5629045
-// [ $O == 6 ] || errchk $G -e $D/$F.go
+// [ $A == 6 ] || errchk $G -e $D/$F.go
// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
-// [ $O != 6 ] || errchk $G -e $D/$F.go
+// [ $A != 6 ] || errchk $G -e $D/$F.go
// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style