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When formatting an API URL there are several ways at the moment, one is putting all the extra rubish in one line. That's not that readable, additionally phpcs freaks out when it sees that. So we need a good way to format all these URLs. What format do you prefer?

I prefer something like:

		$data = 'action=watch'
			. '&format=json'
			. '&unwatch=' . $unwatch
			. '&titles=' . urlencode($title)
			. '&token=' . urlencode($token)
			. '&assert=' . $this->assert
			. '&maxlag=' . $this->maxlag;

(From merge request 5)

Easy to read, but tends to get long.