History of DirBackend::authorize 3 changes

In crates/oxy-server/src/lib.rs, lines 330–341 on 6cc9dea930926bb477848915865715c55078d07ead743f60d54de321a275c31f. 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 330,341:crates/oxy-server/src/lib.rs.