History of undo 1 change

In src/cli/workspace.rs, lines 172–177 on 37f1914b62a82076d723fc4ece9a6ab745908f160d5842dfecf8d5e6bf307ae4. 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 172,177:src/cli/workspace.rs.