History of label 2 changes

In crates/oh/src/main.rs, lines 856–887 on 7f5f6c056d8f8d6e1a66a185452f10303c36f5758c19fe6790af59137752708e. 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 856,887:crates/oh/src/main.rs.