History of plural 1 change

In src/cli/format.rs, lines 13–15 on 978470f76e66f52975c82b9be74696bc1852a848b7c1eea16b2e693128853776. 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 13,15:src/cli/format.rs.