History of Done::fmt 1 change

In crates/hub/src/maintenance.rs, lines 19–21 on 417184c73f4e7d597fca5f1efe2c8d662ba7ba2a561a52e6008f6f4e88fd07bb. 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.