var net/http.envProxyFuncValue

4 uses

	net/http (current package)
		transport.go#L966: 	envProxyFuncValue func(*url.URL) (*url.URL, error)
		transport.go#L973: 		envProxyFuncValue = httpproxy.FromEnvironment().ProxyFunc()
		transport.go#L975: 	return envProxyFuncValue
		transport.go#L981: 	envProxyFuncValue = nil