Cleanup prefix_path so it looks nicer.
Cleanup prefix_path so it looks nicer.

mattbeedle/jekyll-assets,jekyll/jekyll-assets,jeremy/jekyll-assets,mattbeedle/jekyll-assets,jekyll/jekyll-assets,jekyll/jekyll-assets,mattbeedle/jekyll-assets,jekyll-assets/jekyll-assets,jeremy/jekyll-assets,jekyll/jekyll-assets,mattbeedle/jekyll-assets,jekyll-assets/jekyll-assets,jeremy/jekyll-assets,jeremy/jekyll-assets,jekyll-assets/jekyll-assets