History of DirBackend::open 2 changes

In crates/oxy-server/src/lib.rs, lines 319–328 on 454236d1108d3b62fa11d933e7cd2d7e05370c5794aa94388455378fb9e49f72. 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.