[Bug libstdc++/120931] [15/16 Regression] std::deque::resize() method fails with -std=c++98

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120931

--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
I suspect r15-4473-g3abe751ea86e34. 

I am not 100% sure but I think it is a copy and pasto:
```
      // Overload for generic iterators.
      template<typename _ForwardIterator, typename _Tp>
        static void
        __uninit_fill(_ForwardIterator __first, _ForwardIterator __last,
                      const _Tp& __x)
        {
          if (__unwrappable_niter<_ForwardIterator>::__value)
            __uninit_fill(std::__niter_base(__first),
                          std::__niter_base(__last),
                          __x);
          else
            std::__do_uninit_copy(__first, __last, __x);
        }

```

That __do_uninit_copy should be __do_uninit_fill instead.