History of watch 1 change

In crates/oh/src/main.rs, lines 540–563 on 967ef74f6fd9847b2d48a7a20b27bade903fe122f34d4eab7e48efb5242a0020. 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 540,563:crates/oh/src/main.rs.