History of issue 4 changes

In crates/oh/src/main.rs, lines 773–880 on b644e1757711b8dc1e800847526486c53bad3094fdcc2c5c8fc8beb347282570. 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 773,880:crates/oh/src/main.rs.