History of main 2 changes

In crates/oh/src/main.rs, lines 592–609 on 4f40eed0588f55ff8e73d82b0f9cdc24a5864cb105bd3cbb8bab35126c9580fb. 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 592,609:crates/oh/src/main.rs.