History of DirBackend::open 2 changes

In crates/oxy-server/src/lib.rs, lines 319–328 on 9aa399044d9d1415fb4d3b74cb0f2941094de3cba57dadbfc8d9ba3b69c2455f. 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.