Here's the bug report (from ubuntu-bug /sbin/shutdown):

== ApportVersion =================================
2.20.1-0ubuntu2.5

== Architecture =================================
amd64

== Date =================================
Wed Mar 15 21:35:37 2017

== Dependencies =================================
adduser 3.113+nmu3ubuntu4
apt 1.2.19
apt-utils 1.2.19
cgmanager 0.39-2ubuntu5
dbus 1.10.6-1ubuntu3.3
debconf 1.5.58ubuntu1
debconf-i18n 1.5.58ubuntu1
debianutils 4.7
dmsetup 2:1.02.110-1ubuntu10
dpkg 1.18.4ubuntu1.1
gcc-5-base 5.4.0-6ubuntu1~16.04.4
gcc-6-base 6.0.1-0ubuntu1
gnupg 1.4.20-1ubuntu3.1
gpgv 1.4.20-1ubuntu3.1
init-system-helpers 1.29ubuntu4
libacl1 2.2.52-3
libapparmor1 2.10.95-0ubuntu2.5
libapt-inst2.0 1.2.19
libapt-pkg5.0 1.2.19
libattr1 1:2.4.47-2
libaudit-common 1:2.4.5-1ubuntu2
libaudit1 1:2.4.5-1ubuntu2
libblkid1 2.27.1-6ubuntu3.2
libbz2-1.0 1.0.6-8
libc6 2.23-0ubuntu5
libcap-ng0 0.7.7-1
libcap2 1:2.24-12
libcap2-bin 1:2.24-12
libcgmanager0 0.39-2ubuntu5
libcryptsetup4 2:1.6.6-5ubuntu2
libdb5.3 5.3.28-11
libdbus-1-3 1.10.6-1ubuntu3.3
libdevmapper1.02.1 2:1.02.110-1ubuntu10
libexpat1 2.1.0-7ubuntu0.16.04.2
libfdisk1 2.27.1-6ubuntu3.2
libffi6 3.2.1-4
libgcc1 1:6.0.1-0ubuntu1
libgcrypt20 1.6.5-2ubuntu0.2
libglib2.0-0 2.48.2-0ubuntu1
libglib2.0-data 2.48.2-0ubuntu1
libgpg-error0 1.21-2ubuntu1
libgpm2 1.20.4-6.1
libicu55 55.1-7ubuntu0.1
libkmod2 22-1ubuntu4 [modified: usr/share/doc/libkmod2/changelog.Debian.gz]
liblocale-gettext-perl 1.07-1build1
liblz4-1 0.0~r131-2ubuntu2
liblzma5 5.1.1alpha+20120614-2ubuntu2
libmount1 2.27.1-6ubuntu3.2
libncursesw5 6.0+20160213-1ubuntu1
libnih-dbus1 1.0.3-4.3ubuntu1
libnih1 1.0.3-4.3ubuntu1
libpam-cap 1:2.24-12
libpam-modules 1.1.8-3.2ubuntu2
libpam-modules-bin 1.1.8-3.2ubuntu2
libpam-runtime 1.1.8-3.2ubuntu2
libpam-systemd 229-4ubuntu16
libpam0g 1.1.8-3.2ubuntu2
libpcre3 2:8.38-3.1
libreadline6 6.3-8ubuntu2
libseccomp2 2.2.3-3ubuntu3
libselinux1 2.4-3build2
libsemanage-common 2.3-1build3
libsemanage1 2.3-1build3
libsepol1 2.4-2
libsmartcols1 2.27.1-6ubuntu3.2
libstdc++6 5.4.0-6ubuntu1~16.04.4
libsystemd0 229-4ubuntu16
libtext-charwidth-perl 0.04-7build5
libtext-iconv-perl 1.7-5build4
libtext-wrapi18n-perl 0.06-7.1
libtinfo5 6.0+20160213-1ubuntu1
libudev1 229-4ubuntu16
libusb-0.1-4 2:0.1.12-28
libustr-1.0-1 1.0.4-5
libuuid1 2.27.1-6ubuntu3.2
libxml2 2.9.3+dfsg1-1ubuntu0.1
lsb-base 9.20160110ubuntu0.2
mount 2.27.1-6ubuntu3.2
multiarch-support 2.23-0ubuntu5
passwd 1:4.2-3.1ubuntu5
perl-base 5.22.1-9
readline-common 6.3-8ubuntu2
sed 4.2.2-7
sensible-utils 0.0.9
sgml-base 1.26+nmu4ubuntu1
shared-mime-info 1.5-2ubuntu0.1
systemd 229-4ubuntu16
systemd-shim 9-1bzr4ubuntu1
sysvinit-utils 2.88dsf-59.3ubuntu2
tar 1.28-2.1ubuntu0.1
ubuntu-keyring 2012.05.19
update-motd 3.6-0ubuntu1
util-linux 2.27.1-6ubuntu3.2
uuid-runtime 2.27.1-6ubuntu3.2
xdg-user-dirs 0.15-2ubuntu6
xml-core 0.13+nmu2
zlib1g 1:1.2.8.dfsg-2ubuntu4

== DistroRelease =================================
Ubuntu 16.04

== Package =================================
systemd-sysv 229-4ubuntu16

== PackageArchitecture =================================
amd64

== ProblemType =================================
Bug

== ProcEnviron =================================
TERM=screen
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash

== ProcVersionSignature =================================
User Name 4.4.0-67.88~14.04.1-generic 4.4.49

== SourcePackage =================================
systemd

== Tags =================================
 xenial uec-images

== Uname =================================
Linux 4.4.0-67-generic x86_64

== UpgradeStatus =================================
Upgraded to xenial on 2017-03-15 (0 days ago)