1. Capitalize first letter 2. Remove period at the end (followed the pattern in linux coreutil man page)
- Fix typo - Improve command ordering (elect should be below lock) - Update migrate command description
Fixes #5478
Migrate command accepts a datadir and an optional user-provided transformer function that transform v2 keys to v2 keys. Migrate command then builds a v3 backend state based on the existing v2 keys and the output of the transformer function.
