History of open 3 changes

In src/cli/open.rs, lines 20–37 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 20,37:src/cli/open.rs.