History of proposal 5 changes

In crates/oh/src/main.rs, lines 602–720 on dbcb0b813caacaa4c918b57fbeb64879c39ea338fba2a042ab5159213ec7f77e. 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.