login: fix minor typos in the man page

Signed-off-by: Ondrej Oprala <ooprala@redhat.com>
fstrim: add systemd units

This adds a timer and a service for systemd that runs
fstrim -a once a day.

The Persistent=true option used will only work on systemd 212
or newer.
umount: fix typo in usage

Signed-off-by: Jonathan Liu <net147@gmail.com>
setarch: Fix ppc64le architectures

setarch currently fails on ppc64le because it tries to
use big endian architecture names. Fix it.

Signed-off-by: Anton Blanchard <anton@samba.org>