History of help_tests::walk 1 change

In src/cli/mod.rs, lines 1178–1195 on fc1a466a1e66c2759e326cc3662ab9648f2e962dabe288a29e32b1483dd7691a. 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.