Security update for systemd

This update for systemd fixes several issues.

This security issue was fixed:

- CVE-2018-1049: Prevent race that can lead to DoS when using automounts (bsc#1076308).

These non-security issues were fixed:

- core: don't choke if a unit another unit triggers vanishes during reload
- delta: don't ignore PREFIX when the given argument is PREFIX/SUFFIX
- delta: extend skip logic to work on full directory paths (prefix+suffix) (bsc#1070428)
- delta: check if a prefix needs to be skipped only once
- delta: skip symlink paths when split-usr is enabled (#4591)
- sysctl: use raw file descriptor in sysctl_write (#7753)
- sd-netlink: don't take possesion of netlink fd from caller on failure (bsc#1074254)
- Fix the regexp used to detect broken by-id symlinks in /etc/crypttab
It was missing the following case: "/dev/disk/by-id/cr_-xxx".
- sysctl: disable buffer while writing to /proc (bsc#1071558)
- Use read_line() and LONG_LINE_MAX to read values configuration files. (bsc#1071558)
- sysctl: no need to check for eof twice
- def: add new constant LONG_LINE_MAX
- fileio: add new helper call read_line() as bounded getline() replacement
- service: Don't stop unneeded units needed by restarted service (#7526) (bsc#1066156)
- gpt-auto-generator: fix the handling of the value returned by fstab_has_fstype() in add_swap() (#6280)
- gpt-auto-generator: disable gpt auto logic for swaps if at least one is defined in fstab (bsc#897422)
- fstab-util: introduce fstab_has_fstype() helper
- fstab-generator: ignore root=/dev/nfs (#3591)
- fstab-generator: don't process root= if it happens to be "gpt-auto" (#3452)
- virt: use XENFEAT_dom0 to detect the hardware domain (#6442, #6662) (#7581) (bsc#1048510)
- analyze: replace --no-man with --man=no in the man page (bsc#1068251)
- udev: net_setup_link: don't error out when we couldn't apply link config (#7328)
- Add missing /etc/systemd/network directory
- Fix parsing of features in detect_vm_xen_dom0 (#7890) (bsc#1048510)
- sd-bus: use -- when passing arguments to ssh (#6706)
- systemctl: make sure we terminate the bus connection first, and then close the pager (#3550)
- sd-bus: bump message queue size (bsc#1075724)
- tmpfiles: downgrade warning about duplicate line

This update was imported from the SUSE:SLE-12-SP2:Update update project.

Fixed bugs
bnc#1070428
systemd-delta output should be minimal
bnc#1076308
VUL-1: CVE-2018-1049: systemd: automount: access to automounted volumes can lock up
bnc#1075724
L3: PTF request for systemd of s390x.
bnc#1071558
sysctl character limitation
bnc#1065276
VUL-0: CVE-2017-15908: systemd: Remote DOS of systemd-resolve service
bnc#1068251
systemd-analyze's man page mentions unrecognized --no-man option
bnc#1074254
systemd: sd_netlink_open closes fd twice upon failure
bnc#897422
systemd ignores swap options in fstab
bnc#1048510
L3: systemctl start smartd.service fails on XEN Dom0 with ConditionVirtualization=false was not met
bnc#1066156
L3: killing pacemaker with signal 9 leads into split brain instead of sbd based fencing
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