History of undo 1 change

In src/cli/workspace.rs, lines 172–177 on 83e0677b07fe8dc95dd42ab6c00760d520decd6ac3a3761134edfa8bf028b0c3. 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.