Code review comment for lp:~abentley/charms/trusty/apache2/apache-website

Thanks for your review. The linecache failure appears to be python3 syntax that somehow slipped into their python 2 release. arg2 is a "keyword-only" parameter, because it follows a *arg. https://docs.python.org/3/glossary.html#term-parameter

I'll push a revised branch when I get a chance.