This update for systemd fixes the following issues:

- CVE-2019-6454: Overlong DBUS messages could be used to crash systemd (bsc#1125352)

- units: make sure initrd-cleanup.service terminates before switching to rootfs (bsc#1123333)
- logind: fix bad error propagation
- login: log session state "closing" (as well as New/Removed)
- logind: fix borked r check
- login: don't remove all devices from PID1 when only one was removed
- login: we only allow opening character devices
- login: correct comment in session_device_free()
- login: remember that fds received from PID1 need to be removed eventually
- login: fix FDNAME in call to sd_pid_notify_with_fds()
- logind: fd 0 is a valid fd
- logind: rework sd_eviocrevoke()
- logind: check file is device node before using .st_rdev
- logind: use the new FDSTOREREMOVE=1 sd_notify() message (bsc#1124153)
- core: add a new sd_notify() message for removing fds from the FD store again
- logind: make sure we don't trip up on half-initialized session devices (bsc#1123727)
- fd-util: accept that kcmp might fail with EPERM/EACCES
- core: Fix use after free case in load_from_path() (bsc#1121563)
- core: include Found state in device dumps
- device: fix serialization and deserialization of DeviceFound
- fix path in btrfs rule (#6844)
- assemble multidevice btrfs volumes without external tools (#6607) (bsc#1117025)
- Update systemd-system.conf.xml (bsc#1122000)
- units: inform user that the default target is started after exiting from rescue or emergency mode
- core: free lines after reading them (bsc#1123892)
- sd-bus: if we receive an invalid dbus message, ignore and proceeed
- automount: don't pass non-blocking pipe to kernel.

This update was imported from the SUSE:SLE-15:Update update project.