History of api 2 changes

In src/cli/human.rs, lines 21–23 on 862f0db224aa804b21e54af40cadff0e1aea2f21ed5572f45c7d476410f1fdce. 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.