Fix getmntinfo handling on FreeBSD as it seems its the same as OSX (no real surprise).
Fix getmntinfo handling on FreeBSD as it seems its the same as OSX (no real surprise).

rkorzeniewski/bacula,rkorzeniewski/bacula,rkorzeniewski/bacula,rkorzeniewski/bacula,rkorzeniewski/bacula,rkorzeniewski/bacula,rkorzeniewski/bacula,rkorzeniewski/bacula