[PATCH] Fix initialization of _M_grouping

[Paolo Carlini]

Benjamin Kosnik wrote:

> Please check in the original patch, as found here:
>
> http://gcc.gnu.org/ml/libstdc++/2002-01/msg00456.html
>
> Ulrich had some comments on the testsuite entry: please take them into
> account.

Ok.

> Thanks for your patience, and Uli's help!

Thanks to you for coordinating the investigation of this problem.
I have learned so much in these days, contributing to it with you, Nathan and
Uli. It is a real pleasure for me to help libstdc++ !!!

Cheers,
Paolo.