/usr/bin/xfs_fsr: invalid option -- '-'
Usage: xfs_fsr [-d] [-v] [-g] [-t time] [-p passes] [-f leftf] [-m mtab]
       xfs_fsr [-d] [-v] [-g] xfsdev | dir | file ...
       xfs_fsr -V

Options:
       -g              Print to syslog (default if stdout not a tty).
       -t time         How long to run in seconds.
       -p passes       Number of passes before terminating global re-org.
       -f leftoff      Use this instead of /var/tmp/.fsrlast_xfs.
       -m mtab         Use something other than /etc/mtab.
       -d              Debug, print even more.
       -v              Verbose, more -v's more verbose.
       -V              Print version number and exit.