History of DirBackend::authorize 3 changes

In crates/oxy-server/src/lib.rs, lines 301–312 on ef26f9a287909e999d87d7aa269e357d85c99115ddea145f9f4a20ab61f379ee. 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 301,312:crates/oxy-server/src/lib.rs.