Verify the installed ports/packages

To test all the installed packages run it with no arguments:

   ./pkg_debunk

Or for a particular package provide it as a argument:

   ./pkg_debunk ruby18-gems-1.3.5

The results will look like this, displaying the package names and their missing files:

ruby18-gems-1.3.5:
  missing /usr/local/lib/ruby/gems/1.8/cache/sources-0.0.2.gem
  missing /usr/local/lib/ruby/gems/1.8/gems/sources-0.0.2/lib/sources.rb
  missing /usr/local/lib/ruby/gems/1.8/specifications/sources-0.0.2.gemspec