History of label 3 changes

In crates/oh/src/main.rs, lines 1238–1269 on 47e374020b596d7b77dd8549aa97540dd916426a9378baefe1798608444411e0. 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 1238,1269:crates/oh/src/main.rs.