1. All exercises should print a trailing \n
2. The build script should always show you _exactly_ what it's looking
for when you get it wrong. Therefore, .output should be set to the
exact expected output.
When I hit 999 exercises, I will finally have reached the ultimate
state of soteriological release and no more exercises will be needed.
The cycle will be complete. All that will be left is perfect quietude,
freedom, and highest happiness.
