filter: latest mkfs.xfs makes logical sector size noise

filter: latest mkfs.xfs makes logical sector size noise

On devices that have a logical sector smaller than physical sector,
this extra, harmless output now occurs:

     QA output created by 060
    +specified blocksize 1024 is less than device physical sector size 4096
    +switching to logical sector size 512
     Creating directory system to dump using src/fill.
     Setup .......................................
     Dumping to files...

And it causes lots of tests to fail unnecessarily. Filter it.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>