History of DirBackend::open 2 changes

In crates/oxy-server/src/lib.rs, lines 319–328 on ce118287d9da03ef5c98345e3149109c48cf872b6813ec469ccdc2f269e6f34c. 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 319,328:crates/oxy-server/src/lib.rs.