History of Done::fmt 1 change

In crates/hub/src/maintenance.rs, lines 19–21 on 4597750166e7b5ed0afe68bc4ad9c93621c8970937ee152a9c03721c19bf382c. 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.