History of api 2 changes

In src/cli/human.rs, lines 21–23 on 87f601ccce6dc4d2c27ae62b65421be7b3ad7ed33651dbc124dc75abea63e99d. 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.