Patch for the allocator.

[Paolo Carlini]

Paolo Carlini wrote:

> Dhruv Matani wrote:
>
>>>      class _Ffit_finder     : public std::unary_function<typename 
>>> std::pair<_Tp, _Tp>, bool> {  
>>
> ':' must be aligned with 'c' (many instances).

Sorry, on the same line (wasn't like that in the posted code) is better,
many examples in the library. My comment was actually about the preferred
style for the /constructors/

Paolo.