Run on command line
Example:
```
$ baloodb list --missing-only --device-id 2049 '/otto/'
command "list"
Listing database contents...
Missing: device: 2049 inode: 5053 url: /tmp/otto/A
Missing: device: 2049 inode: 9441 url: /tmp/otto/B
Missing: device: 2049 inode: 9464 url: /tmp/otto/B/B.txt
Found 3 matching items
Elapsed: 1.50824 secs
```