History of DirBackend::authorize 3 changes

In crates/oxy-server/src/lib.rs, lines 448–459 on cea2e2f860c53c99e442fdcd5539db3ff130c788d39f42aff5df5612d1f07c38. 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 448,459:crates/oxy-server/src/lib.rs.