History of DirBackend::open 2 changes

In crates/oxy-server/src/lib.rs, lines 313–322 on a07f60a37fb21005b17ecb3bcca6fb906c70307110b9211030ebaa9246bc8ada. 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.