History of err 1 change

In src/cli/ui.rs, lines 49–51 on 7bc302317004406d2291e734f808be8ca355489b4e91001a2670be50837560a0. 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 49,51:src/cli/ui.rs.