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.