History of DirBackend::open 2 changes

In crates/oxy-server/src/lib.rs, lines 313–322 on 3da45015f6f4f32db6d3804b79f99ce1d8632e822e876a0bd856838c8d71221a. 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 313,322:crates/oxy-server/src/lib.rs.