History of write 1 change

In crates/oxy-server/tests/http.rs, lines 8–12 on v0.9.0. 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 8,12:crates/oxy-server/tests/http.rs.