History of DirBackend::authorize 3 changes

In crates/oxy-server/src/lib.rs, lines 409–420 on 82202a4d0025798bbb6288e78c070c67cb8c6f409079e9364e5a109758201c99. 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 409,420:crates/oxy-server/src/lib.rs.