[pkg-go] Bug#840947: Multi-line ARGS assignment in /etc/default/prometheus-node-exporter not suppored by systemd

[Sam Morris]

Package: prometheus-node-exporter
Version: 0.12.0+ds+really0.12.0-2
Severity: minor

When prometheus-node-exporter starts, the following message is logged:

systemd[1]: prometheus-node-exporter.service: Ignoring invalid environment assignment 'ARGS=-collector.diskstats.ignored-devices=^(ram|loop|fd)d+$
systemd[1]:       -collector.textfile.directory=/var/lib/prometheus/node-exporter
systemd[1]:       -collectors.enabled="conntrack,cpu,diskstats,entropy,filefd,filesystem,interrupts,ksmd,logind,loadavg,meminfo,netdev,netstat,stat,systemd,textfile,time,vmstat"': /etc/default/prometheus-node-exporter
systemd[1]: Started Prometheus exporter for machine metrics.

The arguments set in that file are therefore not actaully passed to the
service.

-- System Information:
Debian Release: 8.6
  APT prefers stable-updates
  APT policy: (550, 'stable-updates'), (550, 'stable'), (530, 'testing'), (520, 'unstable'), (500, 'testing-updates'), (1, 'experimental')
Architecture: i386 (i686)

Kernel: Linux 4.7.0-0.bpo.1-686-pae (SMP w/1 CPU core)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages prometheus-node-exporter depends on:
ii  daemon  0.6.4-1
ii  libc6   2.19-18+deb8u6

prometheus-node-exporter recommends no packages.

prometheus-node-exporter suggests no packages.

-- Configuration Files:
/etc/default/prometheus-node-exporter changed [not included]

-- no debconf information