History of err 1 change

In src/cli/ui.rs, lines 187–189 on 039b4ccb972d4f04d2883c83f15baf3dce0ab99a402779bcf453d723dcdaf0d9. 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 187,189:src/cli/ui.rs.