HAMMER Utiliites: undo can now detect all prior replacements of a file.

HAMMER Utiliites: undo can now detect all prior replacements of a file.

The undo code will now iterate the history of the parent directory and
attempt to locate all versions of the requested file even if the inode
number changes due to the file being deleted and recreated, or
renamed-over.

undo -i attempts to show inode number changes and deletions in the list.

undo -a (-d/-D) is now able to span inode number changes.

Suggested-by: corecode