History of err 1 change

In src/cli/ui.rs, lines 187–189 on e82591ec33a43573338641ae9113f0fecbf2d3b5f584360e797cdf1805ce29e1. 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.