History of proposal 5 changes

In crates/oh/src/main.rs, lines 602–720 on c889911bec12fde5e9a56c3ecf5b96d48d3ef28223841ef3b34222663276a1ce. 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 602,720:crates/oh/src/main.rs.