History of help_tests::walk 1 change

In src/cli/mod.rs, lines 1433–1450 on 767ac6cd0545ed1a1ef3f45bbfdd1bebcff222df95616f20491d0bb68c188570. 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 1433,1450:src/cli/mod.rs.