History of DirBackend::open 2 changes

In crates/oxy-server/src/lib.rs, lines 433–442 on 91334b7fa5748e15146a231bb0caf79c2016d1306d7a015a93c7b355fdcec845. 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 433,442:crates/oxy-server/src/lib.rs.