History of help_tests::walk 1 change

In src/cli/mod.rs, lines 1178–1195 on 314db9b4f3f82a20bf6953280246f60cac2c22b3a9770ad1437337e407cb8834. 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.