History of DirBackend::authorize 3 changes

In crates/oxy-server/src/lib.rs, lines 324–335 on dfb23a3a8cfa1fdf4f464003b8b19ed8fdfba9730896761927d7c1073f178aad. 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 324,335:crates/oxy-server/src/lib.rs.