[joelkevinjones]

LLVM has quite a number of people who have "review after commit" privilege. These are people who are trusted to know the difference between changes needing review and those that don't. As a result, people can fix typos, fix formatting, etc. without burdening reviewers. Those sorts of changes don't go through the usual review process, but on occasion may be reverted, by either the committer or someone else who has commit privilege.