History of proposal 6 changes

In crates/oh/src/main.rs, lines 902–1039 on acc85ac0f70b2a5de2d5efb962968443e22475b977c2c19b6aec98baf14a2300. 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 902,1039:crates/oh/src/main.rs.