xfs/207: explicitly test for xflag character

xfs/207: explicitly test for xflag character

With a recent change to xfs_io[1], the fsxattr.xflags output line
has added another flag column, so xfs/207 starts failing.

Rather than testing for an exact set of flags, test whether the
specific flag we are interested in is set or unset.

[1] xfs_io/lsattr: expose FS_XFLAG_HASATTR flag

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Reviewed-by: Bill O'Donnell <billodo@redhat.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>