History of help_tests::walk 1 change

In src/cli/mod.rs, lines 1178–1195 on e811b0813473317bc4ae495202a7c4eda96063de6a78537ca4455c09b8f82eb7. 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 1178,1195:src/cli/mod.rs.