History of DirBackend::open 2 changes

In crates/oxy-server/src/lib.rs, lines 313–322 on c2d790f9fa9545028cb6ea29223212bdf4fab3e4719e6f942f60c21896917ac3. 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.