History of proposal 5 changes

In crates/oh/src/main.rs, lines 604–722 on d94449e42718409b41ab98335c6641b2b4429332e8a1cab535e76467509986b4. 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 604,722:crates/oh/src/main.rs.