History of Retention::default 2 changes

In crates/hub/src/config.rs, lines 229–231 on 7829b7c7bb59af96323959718722bbba411100c09f667e3bc3ce85110d822c18. 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 229,231:crates/hub/src/config.rs.