/usr/bin/xfs_scrub: invalid option -- '-'
Usage: xfs_scrub [OPTIONS] mountpoint

Options:
  -a count     Stop after this many errors are found.
  -b           Background mode.
  -C fd        Print progress information to this fd.
  -e behavior  What to do if errors are found.
  -k           Do not FITRIM the free space.
  -m path      Path to /etc/mtab.
  -n           Dry run.  Do not modify anything.
  -T           Display timing/usage information.
  -v           Verbose output.
  -V           Print version.
  -x           Scrub file data too.
EXPERIMENTAL xfs_scrub program in use! Use at your own risk!