History of Config::default 4 changes

In crates/hub/src/config.rs, lines 199–212 on b19606f28101e4fa0c7fc3588f84f9af2afd54943f6e2138cc1cad04094fbc3e. 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 199,212:crates/hub/src/config.rs.