Make function alias

[Andrey]

On Monday, 20 August 2018 at 13:14:14 UTC, Andrey wrote:
Mistake... this is:
>static void log(bool newline = true)(string text)
>{
>    alias print(T...) = newline ? &writeln : &write;
> 
>    _file.print(text);
>    text.print();
>}