Hack the code so that both existing Go versions and current Go master format it the same (#358)

internal/driver/fetch.go

 
 	client := &http.Client{
 		Transport: &http.Transport{
+			Proxy:                 http.ProxyFromEnvironment,
+			TLSClientConfig:       tlsConfig,
 			ResponseHeaderTimeout: timeout + 5*time.Second,
-			Proxy:           http.ProxyFromEnvironment,
-			TLSClientConfig: tlsConfig,
 		},
 	}
 	return client.Get(source)