History of plural 1 change

In src/cli/format.rs, lines 13–15 on 135212de5370ab32bf3501985a41667bb087f10dec75ffea2c37fea92be69542. 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.