FYI, I just submitted a pull request fixing this in homebrew. They're usually pretty good about merging PRs fast, but if you'd like your manpage right now, you can run:

  brew install https://raw.githubusercontent.com/bbatsell/homebrew/spiped-1.3.1-fixmanpage/Library/Formula/spiped.rb

Edit: 1 hour later, it's already been merged.

  brew update;brew reinstall spiped