History of proposal 6 changes

In crates/oh/src/main.rs, lines 919–1056 on b5a0a69b36221da082d37cbad7b01384f24dfa203a5ae6cc22e8c212d077d358. 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 919,1056:crates/oh/src/main.rs.