xfs_check

[Christoph Hellwig <hch@xxxxxx>]

In the past we had quite a few cases where we told people to run
xfs_repair -n instead of xfs_check.  I think that makes a lot of sense
because xfs_repair -n generally gives output at least as useful as
xfs_check if not more so and also is a lot faster.  Is there any reason
why we shouldn't simply kill xfs_check and replaced it with a wrapper
around xfs_repair?