Inconsistent coding style in code examples

[Andrei Alexandrescu via Digitalmars-d]

On 2/10/15 12:57 PM, H. S. Teoh via Digitalmars-d wrote:
> This PR:
>
> 	https://github.com/D-Programming-Language/phobos/pull/2973
>
> introduces a code example with 2-space indentation, whereas the rest of
> Phobos and dlang.org uses 4-space indentation.
>
> I don't like this. It's inconsistent, and is detracting from the
> professional look of D. It's bad enough that we are inconsistent from
> one page to another, it's even worse that this PR introduces a style
> inconsistency within a *single* doc page. It makes D look amateurish and
> unprofessional.

Yah, I've adjusted spacing. That kind of change must be done wholesale 
if we commit to it. -- Andrei