History of proposal 10 changes

In crates/oh/src/main.rs, lines 1722–1888 on 306aec1839aae6645613e3e938b1f191b7dfeb734eb71f0d91b1ff25fcebe688. 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 1722,1888:crates/oh/src/main.rs.