coff patch for ld -r -S crash with djgpp

[Mark E.]

> 
> > 2002-09-24  Mark Elbrecht  <snowball3@softhome.net>
> > 
> > 	* cofflink.c (mark_relocs): Don't mark relocations in excluded sections.
> 
> Approved.  Thanks!

And I'd appreciate it if could you please apply it. Thanks.

Mark