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go.sys: add Unsetenv

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LGTM=r
R=r
CC=golang-codereviews
https://golang.org/cl/153810043
This commit is contained in:
Brad Fitzpatrick
2014-10-01 12:10:37 -07:00
parent c1f6f8bcc5
commit c65f27ffe6
3 changed files with 42 additions and 0 deletions
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14
plan9/env_unset.go Normal file
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@@ -0,0 +1,14 @@
// Copyright 2014 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.
// +build go1.4
package plan9
import "syscall"
func Unsetenv(key string) error {
// This was added in Go 1.4.
return syscall.Unsetenv(key)
}

14
unix/env_unset.go Normal file
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@@ -0,0 +1,14 @@
// Copyright 2014 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.
// +build go1.4
package unix
import "syscall"
func Unsetenv(key string) error {
// This was added in Go 1.4.
return syscall.Unsetenv(key)
}

14
windows/env_unset.go Normal file
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@@ -0,0 +1,14 @@
// Copyright 2014 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.
// +build go1.4
package windows
import "syscall"
func Unsetenv(key string) error {
// This was added in Go 1.4.
return syscall.Unsetenv(key)
}