lint for D

[Walter Bright]

Bruce Adams wrote:
>  From what I hear about ddoc it is vastly inferior to Doxygen (speaking 
> as usual from ignorance).

Ddoc's purpose is to:

1. set a minimum standard for documentation
2. allow documentation to be written in a typical comment style

At that, it has succeeded spectacularly. Prior to Ddoc, for example, the 
Phobos documentation stunk.

My issue with Doxygen is that:

1. it won't get used consistently (being a third party tool) and so no 
minimum standard
2. the documentation comments look like another programming language