Rest all of go environment variables

rest-go-envs.fish

#!/usr/bin/fish

for e in (go env | awk -F '=' '{ print $1 }')
    go env -u $e
end

rest-go-envs.sh

#!/bin/sh

for e in $(go env | awk -F '=' '{ print $1 }'); do
    go env -u $e
done