Reloads the GitHub Pull Request Diff page, adjusting the URL to have the diffs ignore whitespace.
This script will reload the GitHub Pull Request Diff page with the special URL modifier that signals to GitHub that the file diffs should ignore whitespace. If you don't care about whitespace differences, this makes viewing the file changes much easier and often drastically decreases the amount of irrelevant code (i.e. only whitespace changed) shown by the diff.
