History of DirBackend::open 2 changes

In crates/oxy-server/src/lib.rs, lines 313–322 on 5ad2b56544c58c4ae28564f1e8bc6758eaabb4b97ae37d2c6304a65d1e5e155e. 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.