[v3] fix libstdc++/44647

[Jonathan Wakely]

On 5 October 2010 10:20, Paolo Carlini wrote:
>
> Indeed, let's go ahead with this Jon. Minor nit: please fix the list of
> Copyright years in the new file to just 2010.

OK, thanks.   I'm always confused by that so will try to remember in
future:  the new file contains old code,  and now it looks as though
the bad_alloc definition was not copyrighted prior to 2010 ... which I
find odd.