Code review comment for lp:~canonical-platform-qa/webbrowser-app/fix1444170-flake8

> 21 +# Copyright 2014, 2015 Canonical
>
> in the rest of the codebase, we use dashes, so that would be "Copyright
> 2014-2015 Canonical"

According to some boring legalese from the fsf, it might be safer to use commas. Take a look at the last sentence of the sixth paragraph in https://www.gnu.org/licenses/gpl-howto.html

This is extremely unlikely to be a big deal, but still makes me prefer commas. And I prefer consistency over everything else, so for now lets go with dashes.