History of Config::roles 2 changes

In crates/hub/src/config.rs, lines 564–566 on d061ac87618c3b6171633725d2e7acf67af9c5cff5a70e860c88d1bde410fc74. 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 564,566:crates/hub/src/config.rs.