History of Ripples::label 1 change

In crates/backdrop/src/ripples.rs, lines 189–191 on v0.9.2. 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 189,191:crates/backdrop/src/ripples.rs.