Jenkins apt upgrade error /etc/default/jenkins: --httpListenAddress=127.0.0.1: not found

I have Jenkins runnind on Ubuntu 20.04. Jenkins has config file /etc/default/jenkins which contains directive --httpListenAddress=127.0.0.1 which according documentation set Jenkins to listen only on localhost. I dont know what it means. This error throws when I run apt upgrade.

The whole error message says: Setting up jenkins (2.277.1) ... /var/lib/dpkg/info/jenkins.postinst: 71: /etc/default/jenkins: --httpListenAddress=127.0.0.1: not found