History of opt 1 change

In src/cli/json.rs, lines 17–22 on 8cfb9269bb146eb17c9170bf3bae0bfd6fce721d0cf66e9db49e3c2ce0d2b329. 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 17,22:src/cli/json.rs.