History of issue 4 changes

In crates/oh/src/main.rs, lines 1152–1259 on 5f3fa151688e8b1d91d5cd3dfe316416683c13a6d1244fc1ea4859dce74b4e99. 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 1152,1259:crates/oh/src/main.rs.