History of Done::fmt 1 change

In crates/hub/src/maintenance.rs, lines 19–21 on c2be148cfe83dd38228a64d398fdc765983d2ec64eb741aac1ec50e83297201a. Every change that wrote or deleted one of these lines, or deleted a line from between them. Exact, because each line keeps its identity across edits; edits elsewhere in the file are not here. Also: oxy log -L 19,21:crates/hub/src/maintenance.rs.