Bug#725971: xfsprogs: config.guess/config.sub out of date for arm64

[Rich Johnston]

This has been committed.

Thanks
--Rich

commit 773d6f6e3800dce5d27af687ebd3ff323dcdfd72
Author: Colin Watson <cjwatson at ubuntu.com>
Date:   Thu Oct 17 15:27:02 2013 -0500

     Sent: Friday, October 11, 2013 12:38:11 AM
     Subject: Bug#725971: xfsprogs: config.guess/config.sub out of date 
for arm64