depending on the subcommand:
[verse]
-git reflog expire [--dry-run] [--stale-fix]
+git reflog expire [--dry-run] [--stale-fix] [--verbose]
[--expire=<time>] [--expire-unreachable=<time>] [--all] <refs>...
git reflog [show] [log-options]
--all::
Instead of listing <refs> explicitly, prune all refs.
+--verbose::
+ Print extra information on screen.
+
Author
------
Written by Junio C Hamano <junkio@cox.net>