History of DirBackend::open 2 changes

In crates/oxy-server/src/lib.rs, lines 313–322 on fc1a466a1e66c2759e326cc3662ab9648f2e962dabe288a29e32b1483dd7691a. 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 313,322:crates/oxy-server/src/lib.rs.