tests/f_dupdot/expect.1

Pass 1: Checking inodes, blocks, and sizes
Pass 2: Checking directory structure
Entry '.' in <14>/<12> (12) is duplicate '.' entry.
Fix? yes

Entry '..' in <14>/<12> (12) is duplicate '..' entry.
Fix? yes

Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Unattached inode 13
Connect to /lost+found? yes

Inode 13 ref count is 2, should be 1.  Fix? yes

Unattached zero-length inode 14.  Clear? yes

Pass 5: Checking group summary information

test_filesys: ***** FILE SYSTEM WAS MODIFIED *****
test_filesys: 13/16 files (0.0% non-contiguous), 22/100 blocks
Exit status is 1