Scrapes description from formula homepage on `brew info FORMULA`

Searches for HTML tags with class of "pkg_mgr_desc", converts HTML to plain text and prints to the screen.

The code works on its own, but for some reason fails when I put it in the Homebrew codebase (swapping in test homepage string for f.homepage and testing it by importing a formula from my own tap and changing the homepage to a page hosted on localhost). I want to see what test-bot has to say and get some input from you guys (even if just to reject the idea, so that I don't have to waste more time on it).