[patch] document which edition of Effective C++ is used for -Weffc++

[Jonathan Wakely]

On 6 February 2012 01:04, Gerald Pfeifer wrote:
> On Mon, 6 Feb 2012, Jonathan Wakely wrote:
>>         PR c++/48680
>>         * doc/invoke.texi (C++ Dialect Options): Use @option markup for
>>         -Weffc++ and specify guidelines come from second edition.
>>
>> Tested with 'make doc html'
>> OK for trunk?
>
> Yes.  The first is a bug fix, the second obvious (for those in
> the know, before your patch :-).

Thanks, I've checked it in.