rsyslog does not contain pmciscoios module

rsyslog has a parser module for Cisco IOS formatted syslog messages:
https://www.rsyslog.com/doc/master/configuration/modules/pmciscoios.html
https://github.com/rsyslog/rsyslog/tree/master/plugins/pmciscoios

It has been in rsyslog since early days (8.3.4); Bionic has 8.16.0.

However, the Ubuntu Bionic package of rsyslog neither compiles pmciscoios into the binary, nor includes it as a loadable module.

To replicate, try these lines in /etc/rsyslog.conf:

module(load="pmciscoios")
$RulesetParser rsyslog.ciscoios

and restart rsyslog; you get these errors

Mar 8 21:54:39 noc rsyslogd-2066: could not load module '/usr/lib/rsyslog/pmciscoios.so', dlopen: /usr/lib/rsyslog/pmciscoios.so: cannot open shared object file: No such file or directory [v8.16.0 try http://www.rsyslog.com/e/2066 ]
Mar 8 21:54:39 noc rsyslogd-2159: error: parser 'rsyslog.ciscoios' unknown at this time (maybe defined too late in rsyslog.conf?) [v8.16.0 try http://www.rsyslog.com/e/2159 ]

There is "pmcisconames.so", but that is something else:
https://github.com/rsyslog/rsyslog/blob/master/contrib/pmcisconames/pmcisconames.c

# dpkg-query -L rsyslog | grep pm.*so
/usr/lib/rsyslog/pmaixforwardedfrom.so
/usr/lib/rsyslog/pmlastmsg.so
/usr/lib/rsyslog/pmsnare.so
/usr/lib/rsyslog/pmcisconames.so

There doesn't appear to be a separate package with the module:

# apt-cache search rsyslog
...

Upstream Debian bug:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=929608

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: rsyslog 8.16.0-1ubuntu3.1
ProcVersionSignature: Ubuntu 4.4.0-166.195-generic 4.4.194
Uname: Linux 4.4.0-166-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.19
Architecture: amd64
Date: Sun Mar 8 21:53:43 2020
ProcEnviron:
 SHELL=/bin/bash
 TERM=xterm-256color
 PATH=(custom, no user)
 LANG=en_US.UTF-8
SourcePackage: rsyslog
UpgradeStatus: No upgrade log present (probably fresh install)
mtime.conffile..etc.rsyslog.conf: 2020-03-08T21:53:39.943611