[Bug 1613751] [NEW] journald forwards to syslog with facility=KERN on everything

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NetworkManager's copious syslog output is for some reason making its way
into my /var/log/kern.log file. This includes a couple dozen <info>
lines at startup and a similar amount when connecting to WiFi with DHCP.

The NM man page states that the default facility should be DAEMON, as
does the NM wiki -- see
http://manpages.ubuntu.com/manpages/xenial/man8/NetworkManager.8.html
and https://wiki.gnome.org/Projects/NetworkManager/Debugging

Hopefully, it goes without saying that the KERN facility is reserved for
the kernel and shouldn't be messed with by anything from userland.

Nothing in the rsyslog configs references kern.log except the one expected line:
/etc/rsyslog.d/50-default.conf:kern.*				-/var/log/kern.log

Nothing in NetworkManager.conf references syslog or its facilities. Oh,
and these messages do also correctly make it to syslog.log. I've no idea
how or why they also end up in kern.log, though.

This doesn't happen on Ubuntu 14.04:
% zgrep -cv kernel: /var/log/kern.log*         
/var/log/kern.log:0
/var/log/kern.log.1:0
/var/log/kern.log.2.gz:0
/var/log/kern.log.3.gz:0
/var/log/kern.log.4.gz:0

On Ubuntu 16.04.1, NM is the major culprit, although there were also a few lines from gnome-session:
% zgrep -cv kernel: /mnt/var/log/kern.log*
/mnt/var/log/kern.log:402
/mnt/var/log/kern.log.1:722
% zgrep -v kernel: /mnt/var/log/kern.log* | grep -vc NetworkManager
17
% zgrep -v kernel: /mnt/var/log/kern.log* | fgrep -cve NetworkManager -e 'gnome-session-binary'
0

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: network-manager 1.2.0-0ubuntu0.16.04.3
ProcVersionSignature: Ubuntu 4.4.0-31.50-generic 4.4.13
Uname: Linux 4.4.0-31-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
CurrentDesktop: Unity
Date: Tue Aug 16 06:53:42 2016
IfupdownConfig:
 # interfaces(5) file used by ifup(8) and ifdown(8)
 auto lo
 iface lo inet loopback
InstallationDate: Installed on 2016-08-13 (3 days ago)
InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
IpRoute:
 default via 192.168.0.1 dev wlp3s0  proto static  metric 600 
 169.254.0.0/16 dev wlp3s0  scope link  metric 1000 
 192.168.0.0/24 dev wlp3s0  proto kernel  scope link  src 192.168.0.5  metric 600
NetworkManager.state:
 [main]
 NetworkingEnabled=true
 WirelessEnabled=true
 WWANEnabled=true
SourcePackage: network-manager
UpgradeStatus: No upgrade log present (probably fresh install)
nmcli-dev:
 DEVICE   TYPE      STATE        DBUS-PATH                                  CONNECTION  CON-UUID                              CON-PATH                                           
 wlp3s0   wifi      connected    /org/freedesktop/NetworkManager/Devices/1  86180F      674c9d27-1bb1-4055-a6e4-07de9abbb586  /org/freedesktop/NetworkManager/ActiveConnection/0 
 enp0s25  ethernet  unavailable  /org/freedesktop/NetworkManager/Devices/2  --          --                                    --                                                 
 lo       loopback  unmanaged    /org/freedesktop/NetworkManager/Devices/0  --          --                                    --
nmcli-nm:
 RUNNING  VERSION  STATE      STARTUP  CONNECTIVITY  NETWORKING  WIFI-HW  WIFI     WWAN-HW  WWAN    
 running  1.2.0    connected  started  full          enabled     enabled  enabled  enabled  enabled

** Affects: systemd (Ubuntu)
     Importance: Low
         Status: New

** Affects: network-manager (Ubuntu)
     Importance: Low
     Assignee: Aron Xu (happyaron)
         Status: New


** Tags: amd64 apport-bug xenial
-- 
journald forwards to syslog with facility=KERN on everything
https://bugs.launchpad.net/bugs/1613751
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