run rubocop --autocorrect-all
run rubocop --autocorrect-all

This picks up a few non-controversial bits, mostly
Style/RedundantArgument (which I think are only marked as unsafe because
we could have overridden methods like join/split, but that's not a
problem in this case).

git/git-scm.com,git/git-scm.com,git/git-scm.com,git/git-scm.com