From 55ea153b785249cfa9b15550d78eeb3df7d825d8 Mon Sep 17 00:00:00 2001 From: Brad Fitzpatrick Date: Thu, 18 Aug 2016 05:26:51 +0000 Subject: [PATCH] os: reference LookupEnv from the Getenv docs Fixes #16782 Change-Id: If54917bf5ca1588d8a6d443c3aa6e1d4ada6b620 Reviewed-on: https://go-review.googlesource.com/27322 Reviewed-by: anatoly techtonik Reviewed-by: Ian Lance Taylor --- src/os/env.go | 1 + 1 file changed, 1 insertion(+) diff --git a/src/os/env.go b/src/os/env.go index 4a147144c3..aa83ee3a97 100644 --- a/src/os/env.go +++ b/src/os/env.go @@ -76,6 +76,7 @@ func getShellName(s string) (string, int) { // Getenv retrieves the value of the environment variable named by the key. // It returns the value, which will be empty if the variable is not present. +// To distinguish between an empty value and an unset value, use LookupEnv. func Getenv(key string) string { v, _ := syscall.Getenv(key) return v -- 2.50.0