Needs better instructions for whitespace

The task doesn't describe the requirements for whitespace. I only passed by trial and error.

The instructions should explicitly say to treat all whitespace as a single space, and to keep the leading and/or trailing space. Honestly this seems like a glitchy way to format. On my Linux system, this is not the way cowsay deals with leading/trailing spaces, although I think it just uses "wrap -40", so maybe it was different on older systems.