Remove trailing whitespace

[jayvdb]

See $ git grep ' $'

[gitmate-bot]

Hi, I'm GitMate.io!

It seems you've just enabled the issue triaging. I'm just scraping all issues from your repository and will give you some more information about this in a few minutes or so.

Because of the rate limit we can't scrape all information (including all comments and authors) right now - our system is already set up to scrape this in the next days over which the predictions will become more precise every day.

If you want me to use a different account for triaging your issues, simply create one and log in with it.

Sit tight!