xfstests: filter whitespace in 128 and 132

xfstests: filter whitespace in 128 and 132

Seems either I have a different lsattr version, or different mount points
cause differences in the golden output.  Send the lsattr output through
the whitespaces filter so that it works everywhere.

The lsattr output /does/ change depending on mountpoints.  Ick.  I'd
actually changed it to the long format output because line length in
the short format changes every time the flags change.

Signed-off-by: Christoph Hellwig <hch@lst.de>
[darrick.wong@oracle.com: update changelog]
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>