affected/package: go env

[ZephryLiang]

What version of Go are you using (go version)?

Go1.16

$ go version

Does this issue reproduce with the latest release?

no

What operating system and processor architecture are you using (go env)?

win10

go env Output

$ go env
set GO111MODULE=on
set GOARCH=amd64
set GOBIN=
set GOCACHE=C:\Users\001\AppData\Local\go-build
set GOENV=C:\Users\001\AppData\Roaming\go\env
set GOEXE=.exe
set GOFLAGS=
set GOHOSTARCH=amd64
set GOHOSTOS=windows
set GOINSECURE=
set GOMODCACHE=C:\Users\001\go\pkg\mod
set GONOPROXY=five.com/library.git
set GONOSUMDB=five.com/library.git
set GOOS=windows
set GOPATH=C:\Users\001\go
set GOPRIVATE=five.com/library.git
set GOPROXY=https://goproxy.cn,direct
set GOROOT=C:\Users\001\go\go1.16
set GOSUMDB=sum.golang.org
set GOTMPDIR=
set GOTOOLDIR=C:\Users\001\go\go1.16\pkg\tool\windows_amd64
set GOVCS=
set GOVERSION=go1.16
set GCCGO=gccgo
set AR=ar
set CC=gcc
set CXX=g++
set CGO_ENABLED=1
set GOMOD=D:\testmod\go.mod
set CGO_CFLAGS=-g -O2
set CGO_CPPFLAGS=
set CGO_CXXFLAGS=-g -O2
set CGO_FFLAGS=-g -O2
set CGO_LDFLAGS=-g -O2
set PKG_CONFIG=pkg-config
set GOGCCFLAGS=-m64 -mthreads -fno-caret-diagnostics -Qunused-arguments -fme
ssage-length=0 -fdebug-prefix-map=C:\Users\001\AppData\Local\Temp\go-build20
37510353=/tmp/go-build -gno-record-gcc-switches

What did you do?

once upon a time, GOPRIVATE is set.But today,i want to modify the variable by "go env -w".It warns:warning: go env -w GOPRIVATE=... does not override conflicting OS environmen
t variable

What did you expect to see?

how can i modify/unset the GOPRIVATE

What did you see instead?

[seankhliao]

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