History of Done::fmt 1 change

In crates/hub/src/maintenance.rs, lines 19–21 on a7e6e8e6094c0a836ddde37499e7b44d64db9db4a3404d871eaa92682aea12c6. 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.