History of plural 1 change

In src/cli/format.rs, lines 13–15 on 79d03f826ecd90a893751f33fe16af0da86cfbaf510e86ce583f2c036a106e7a. 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.