print ubyte[] as (ascii) string

[eugene]

On Thursday, 30 December 2021 at 16:49:17 UTC, Tejas wrote:
> ```d
> char[] s = cast(char[])ioCtx.buf[0 .. $];// please remember 
> that in `[0 .. $]` last index is automatically `length - 1` but 
> just buf[$] will be an error since there the actual `length` 
> will be used
> ```
>
> I _think_ the above code is correct, please verify

There is one pecularity:

```d
char[] s = fromStringz(cast(char*)ioCtx.buf.ptr);
writefln("got '%s' from '%s:%d'", s.strip, client.addr, 
client.port);
// strip works :)
```

```d
char[] s = cast(char[])ioCtx.buf[0 .. $];
writefln("got '%s' from '%s:%d'", s.strip, client.addr, 
client.port);
// strip does not work :(
```