Otherwise we just get spew on the console without the code ever knowing that an error happened.

This feature allows the user to specify the base tag from which to scan for version tags, allowing for tooling like standard-version to pull the previous version from some other location than the most recent tag.

With this a user can generate a partial changelog starting at a specific tag and proceeding to the current version.

I chose not to attempt a "to" flag as that would make this much more complex and is not needed for my use case just now.