Question about dsfml.system.err

[Konstantin Kutsevalov via Digitalmars-d-learn]

On Tuesday, 8 November 2016 at 16:34:04 UTC, Konstantin 
Kutsevalov wrote:
> ADD:
>
> I tried to open other stream in main()
>
> ```
> ...
> import dsfml.system.err;
>
> int main(string[] args)
> {
> 	err.open("errors.log", "a");
> 	err.write("test\n");
>     ....
> }
> ...
> ```
>
> but as can I see, that hasn't any effect for tcplistener 
> module...

OK ... problem with tcplistener solved, just a code mistake. But 
the question is actual.