History of err 1 change

In src/cli/ui.rs, lines 174–176 on 7891e21c762f82fd14b1b54f4210ae17357b6b5d9c7f02bbcc31fc397dd98795. 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 174,176:src/cli/ui.rs.