These were flagged as warnings, presumably because they no longer apply in some later release of Rubocop.
The code for `kitchen driver discover` was written when there weren't many RubyGem Drivers published, however this is no longer the case. Worse, the gems that are returned could be Provisioners, Transports, etc. In an attempt to make the output readable, the number of results was arbitrarily cut off at 49 before adding "...". Guess what? There are now many more than 49 results! The easiest fix for this was to remove "kitchen-vagrant" (which fell off the results due to its sorting), but the usefulness of this subcommand might not be that high. This is a potential opportunity for deprecation in the future.