History of DirBackend::open 2 changes

In crates/oxy-server/src/lib.rs, lines 319–328 on c9369ad8b1b153b2493c3fafb5ab2a404dc86e0a356b1694469753c9bdd6a230. 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 319,328:crates/oxy-server/src/lib.rs.