TODO: add some fsck items
kerne-command-line: introduce option 'systemd.restore_state'

When set to 0 this will stop tools like the backlight and rfkill tools to
restore state from previous boot. This is useful in case the stored state
is bogus to the extent that it is preventing you from resetting it (e.g.,
the backlight settings cause the screen to be off on boot on a system where
the backlight can not be adjusted directly from the keyboard).
fstab-generator: When parsing the root= cmdline option, set FsckPassNo to 1

[tomegun: without this we would never fsck the rootfs if it was directly
mounted 'rw' from the initrd. We now risk fsck'ing it twice in the case it
is mounted 'ro', so that should be addressed in a separate patch.]
fstab-generator: Generate explicit dependencies on systemd-fsck@.service instead of using FsckPassNo

[tomegun:
  * order all fsck instances after fsck-root
  * check for OOM
  * added notes in the manpages]
gpt-auto-generator: Generate explicit dependencies on systemd-fsck@.service instead of using FsckPassNo

[tomegun: check for OOM]
Remove FsckPassNo from systemd-fsck-root.service
mount/service: drop FsckPassNo support

We now treat passno as boleans in the generators, and don't need this any more. fsck itself
is able to sequentialize checks on the same local media, so in the common case the ordering
is redundant.

It is still possible to force an order by using .d fragments, in case that is desired.
efi-boot-generator: hookup to fsck
fsck-root: only run when requested in fstab

fsck-root is redundant in case an initrd is used, or in case the rootfs
is never remounted 'rw', so the new default is the correct behavior for
most users. For the rest, they should enable it in fstab.
udev-builtin: uaccess - inherit logging form udev

Not that it makes a difference in this builtin, but otherwise /etc/udev/udev.conf is not respected.
TODO: update
man: fix typos in backlight/rfkill page

/me must learn to also test manpage changes
trivial: rfkill: It's util.h, not utils.h

How about we actually run make locally before pushing, eh?