History of label 3 changes

In crates/oh/src/main.rs, lines 1545–1576 on 356183b71fab8ff2e99271c2f7ed872cfc084c89148f242ee00a92320139dddf. 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.