Fix for bfd/dwarf1.c

[Will Cohen]

Alan Modra wrote:
> 
> On Tue, 3 Oct 2000, Will Cohen wrote:
> 
> > 2000-10-03  Will Cohen  <wcohen@redhat.com>
> >
> >       * dwarf1.c (_bfd_dwarf1_find_nearest_line): Added code to
> >       initialize fields in aUnit.
> >
> > This fixes a problem with some unitialized pointer fields being
> > filled with garbage, causing the linker to crash on winNT
> > when trying to link code with debugging information.
> 
> But "aUnit" is allocated using bfd_zalloc, so I don't see what your patch
> is doing.  The fields you are zeroing should already be zero from the
> bfd_zalloc.
> 
> Alan Modra
> --
> Linuxcare.  Support for the Revolution.

Those field were not being zeroed as expected on winNT.
I will take another look.

-Will