History of when 2 changes

In src/cli/format.rs, lines 20–41 on 028545dfa7a4797ef6fa2537bd255cc2f050b6bc3002f5acb00d911007567e2b. 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 20,41:src/cli/format.rs.