History of DirBackend::open 2 changes

In crates/oxy-server/src/lib.rs, lines 433–442 on dab94366a4f07768eb7bb7b508e4cb04eb877859a8e12150de3fd426d40efd05. 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.