History of api 2 changes

In src/cli/human.rs, lines 21–23 on c7161ec1a607d445a7eeebc53cc41c1546bec3ce99c7a5494a2736efe0b8fbc4. 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 21,23:src/cli/human.rs.