missing HexString documentation

[Mike Franklin]

On Wednesday, 7 February 2018 at 23:30:57 UTC, Walter Bright 
wrote:

> Can you please provide a list of these issues, and file issues 
> that aren't on bugzilla yet, and tag them with the betterC 
> keyword?
>
> I see only one:
>
> https://issues.dlang.org/buglist.cgi?quicksearch=%5Bbetterc%5D&list_id=219382

Don't search for "[betterC]".  Instead, use "betterC" (without 
the brackets).

https://issues.dlang.org/buglist.cgi?quicksearch=betterc&list_id=219390

We can't reliably rely on informal conventions.

Mike