[patch] Fix readelf display of 8-byte values

[nick clifton]

Hi Cary,

> 2012-02-14  Cary Coutant<ccoutant@google.com>
>
> 	* dwarf.c (dwarf_vmatoa64): New function.
> 	(read_and_display_attr_value): Print 8-byte forms as single hex
> 	numbers.
> 	(process_debug_info): Print type signatures as single hex numbers.
> 	* elfcomm.c (byte_get_64): New function.
> 	* elfcomm.h (byte_get_64): New function.
>

Approved - please apply.

Cheers
   Nick