--prune=<date>::
Prune loose objects older than date (default is 2 weeks ago,
overridable by the config variable `gc.pruneExpire`).
- --prune=all prunes loose objects regardless of their age.
- --prune is on by default.
+ --prune=all prunes loose objects regardless of their age (do
+ not use --prune=all unless you know exactly what you are doing.
+ Unless the repository is quiescent, you will lose newly created
+ objects that haven't been anchored with the refs and end up
+ corrupting your repository). --prune is on by default.
--no-prune::
Do not prune any loose objects.