Usage: redo-depfix

Traverse over all .redo directories beneath and recalculate each target's
inode and hash information, rewriting dependency files. If dependency has
legacy .rec format, then it will be converted to .dep one.

When you copy your worktree to different place, then copied files
ctime will change. And because recorded dependency information
differs from updated ctimes, out-of-date algorithm will fallback to
rereading the whole files for hash calculation, that is much slower.
If you do not want to rebuild your targets from the ground, you can
use that command.

Also if it finds legacy .rec dependency files, it converts them to
binary format.
