History of issue 3 changes

In crates/oh/src/main.rs, lines 577–677 on 5ea4872f23e86a93929d6d7c4ac16216eb188a41f8553dfcc40c0bb6087210a3. 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 577,677:crates/oh/src/main.rs.