The current `lla` alias, together with the `total-size` option try to get
the size of the `..` directory, and for this has to recursively open all
sibling folders. This may be super slow if some of those siblings
contain too many files, and raise a ton of useless errors if some of
those siblings contains non-readable files.
I'm suggesting to use `-A` instead, which will skip the obvious `.` and
`..` folders.
While here, I think we could also add `llt`.
17ce23ea56