Is this RDMD bug ?

[Dicebot via Digitalmars-d-learn]

On Saturday, 23 August 2014 at 17:37:39 UTC, sigod wrote:
> On Saturday, 23 August 2014 at 17:32:15 UTC, Vladimir Panteleev 
> wrote:
>> No, it is not an rdmd bug.
>>
>> "etc" is a standard D package name reserved for Phobos, the 
>> standard library. It is the same for "std" and "core".
>
> Please, point us directly to a documentation where it says that 
> this words reserved.

http://dlang.org/phobos/ ?
(you don't expect to casually use package names "std" and "core" 
either, do you?)