Version 3.9.2 is available upstream. Please consider updating! It seems that version 3.9.2 is available upstream, while the latest version in the Gentoo tree is 3.9.1. You think this warning is false? Read more about it here.
Lager (as in the beer) is a logging framework for Erlang. Its purpose
is to provide a more traditional way to perform logging in an erlang
application that plays nicely with traditional UNIX logging tools like
logrotate and syslog.