History of label 3 changes

In crates/oh/src/main.rs, lines 966–997 on 2a83f5303458253ca676b38c479a96a8469bc39723ac7b74e0da95b8fcfcb673. 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 966,997:crates/oh/src/main.rs.