History of DirBackend::open 2 changes

In crates/oxy-server/src/lib.rs, lines 292–301 on 76f752503e7e4d6e0aa07f080a8a8b8cd480292c93094c73b5b2b6df997ff7c8. 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 292,301:crates/oxy-server/src/lib.rs.