[patch] Add --compress-debug-sections option to gas

[Cary Coutant]

>>>  @item --compress-debug-sections
>>>  Compress DWARF debug sections using zlib.  The debug sections are
>>> renamed
>>>  to begin with @samp{.zdebug}, and the resulting object file may not be
>>>  compatible with older linkers and object file utilities.  This option is
>>>  only supported if the host machine has the zlib compression library.
>>
>> Sorry, I forgot to incorporate that change into my patch. Is this
>> patch OK to apply with your suggested change?
>
> Yes - please apply.

Thanks! Applied.

-cary