History of proposal 6 changes

In crates/oh/src/main.rs, lines 907–1044 on 9a8e3b4419e05574a3a5bb5d37fda6b1d904fb842bf91608237fd4b0699b758e. 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 907,1044:crates/oh/src/main.rs.