History of label 3 changes

In crates/oh/src/main.rs, lines 1545–1576 on 367f34b8e590b83920b391fbe78d201500c6b051145d52f8f6f2d9c060f8fa67. 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 1545,1576:crates/oh/src/main.rs.