[PATCH,HURD] Fix reading core

[Alfred M. Szmidt]

   > > > * gdb/i386gnu-nat.c (CREG_OFFSET): New macro.
   > > > (creg_offset): New array.
   > > > (CREG_ADDR): Use creg_offset instead of reg_offset.
   > > 
   > > Did anyone review this? I don't know GNU/Hurd, but the patch looks
   > > very plausible.
   > > 
   > > Do you have write access to the GDB repository?
   > 
   > I don't.
   > 
   > > If not, do you have copyright assignment papers on file?
   > 
   > It's on file now.

   OK - if you have other patches in the pipeline, let's give you write
   access to the repository as soon as this patch is approved. 

Consider it approved.