[Pkg-monitoring-maintainers] Bug#878212: mon: fails to properly log errors from alert scripts

[Russell Coker]

Package: mon
Version: 1.3.2-1
Severity: normal

When an alert script returns non-zero that should be logged and treated
specially.  That's an unusually significant error because it means other
errors aren't being reported.

-- System Information:
Debian Release: 9.2
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 4.9.0-3-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_AU.UTF-8, LC_CTYPE=en_AU.UTF-8 (charmap=UTF-8), LANGUAGE=en_AU:en (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages mon depends on:
ii  adduser              3.115
ii  init-system-helpers  1.48
ii  libc6                2.24-11+deb9u1
ii  libtime-period-perl  1.20-8.2
ii  mon-client           1.2.0-2

Versions of packages mon recommends:
ii  bc                               1.06.95-9+b3
pn  fping                            <none>
pn  libauthen-pam-perl               <none>
ii  libcgi-pm-perl                   4.35-1
pn  libcrypt-ssleay-perl             <none>
ii  libfilesys-df-perl               0.92-6+b1
ii  libmail-imapclient-perl          3.38-1
ii  libnet-dns-perl                  1.07-1
pn  libnet-ldap-perl                 <none>
pn  libnet-telnet-perl               <none>
ii  libproc-processtable-perl        0.53-2
pn  libsnmp-perl                     <none>
pn  libstatistics-descriptive-perl   <none>
pn  libtime-parsedate-perl           <none>
ii  perl-modules-5.24 [libnet-perl]  5.24.1-3+deb9u2
ii  swaks                            20170101.0-1

Versions of packages mon suggests:
ii  mon-contrib  1.0+dfsg-4

-- Configuration Files:
/etc/mon/mon.cf changed [not included]

-- no debconf information

-- debsums errors found:
debsums: changed file /usr/lib/mon/alert.d/mailxmpp.alert (from mon package)