History of proposal 5 changes

In crates/oh/src/main.rs, lines 602–720 on 4866be1c9040201c52d96db802d35b2b1ce7f50b13a8a2f65a1ed1f6f854c6bb. 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.