History of Config::default 4 changes

In crates/hub/src/config.rs, lines 199–212 on bd630386001ed3d0fc0d03c01548c193a2297f90b6fedb00b5883259f9ca1ad0. 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.