History of DirBackend::open 2 changes

In crates/oxy-server/src/lib.rs, lines 319–328 on d8d9367878a60725d141ff26bc6bbeb473a54db27604561408404e088ecabd36. 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.