From: Darrick J. Wong <djwong@kernel.org>
Add a -r option to xfs_admin so that we can pass the name of the
realtime device to xfs_repair.
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Brian Foster <redacted>