History of plural 1 change

In src/cli/format.rs, lines 13–15 on 252e8cb23fbca10a4fa4cb4332bebce7af26f16c91c41985808bc8fc62f0e69b. 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.