udev: increase the size of RESULT buffer

Under some conditions, in udev_rules_apply_to_event the fact that
result is 1024 bytes, creates problems if the output of the running
command/app is bigger then 1024 bytes.
service: add FailureAction= option

It has the same possible values as StartLimitAction= and is executed
immediately if a service fails.
service: rename StartLimitAction enum to FailureAction

It's used for the FailureAction property as well.
udev: warn when name_to_handle_at is not implemented

We have a bunch of reports from people who have a custom kernel and
are confused why udev is not running. Issue a warning on
error. Barring an error in the code, the only error that is possible
is ENOSYS.

https://bugzilla.redhat.com/show_bug.cgi?id=1072966
bootchart: add control group option
bootchart: rewrite usage message more generally
bootchart: print to stdout and display default values in help
update TODO
core: make sure we always write changed cgroup attributes to the cgroupfs
core: expose CFS CPU time quota as high-level unit properties
update TODO
core: reindent {selinux, ima, smack}-setup.c

7-space indentation is just too weird to leave alone.
Make it 8 spaces, as per CODING_STYLE. No other changes.
networkd-wait-online: drop config file and add commandline options instead
networkd-wait-online: refactor a bit

Clarify that we are waiting for any link to reach 'carrier' state, regardless
of who manages it. This will be useful when we add support for waiting for more
operational states.
man: networkd typo fixes
test-journal-flush: avoid predictable names in /var/tmp
build-sys: add configure switch for -fsanitize=undefined

--enable-undefined-sanitizer mirrors --enable-memory-sanitizer.
job: add waiting jobs to run queue in unit_coldplug

When we have job installed and added to run queue for service which is
still in dead state and systemd initiates reload then after reload we
never add deserialized job to the run queue again. This is caused by
check in service_coldplug() where we check if deserialized state is
something else than dead state, which is not the case thus we never call
service_set_state() and finally unit_notify() where we would have added
job to the run queue.

Thanks to Michal Sekletar <msekleta@redhat.com> for the original patch.
networkd: do not complain about IFF_RUNNING

Otherwise:
eth0: unknown link flags gained: 0x00040 (ignoring)

[tomegun: hiding these messages is ok, as IFF_RUNNING is redundant
          and can be deduced from operstate and IFF_LOWER_UP]
libnetworkd: add link local tests

- Also only allow positive ifindex on both dhcp and ipv4ll

[tomegun: the kernel always sets a positive ifindex, but some APIs accept
          ifindex=0 with various meanings, so we should protect against
          accidentally passing ifindex=0 along.]