zfs test mdb_001_pos can fail
The zfs test mdb_001_pos can fail with the following errors:
13:34:20.94 SUCCESS: zpool scrub testpool 13:34:23.34 /opt/zfs-tests/tests/functional/mdb/mdb_001_pos: ffffff0c6cba7000 ::zfs_blkstats -v: not found [No such file or directory] 13:34:23.34 ASSERTION: Verify that the ZFS mdb dcmds and walkers are working as expected. 13:34:23.34 NOTE: Verifying: '::abuf_find 1 2' 13:34:23.34 /opt/zfs-tests/tests/functional/mdb/mdb_001_pos: : cannot open
The first error is trivial -- a missing '\' on the previous line (90).
The second error appears to be due to '$OUTFILE' not being set