History of help_tests::walk 1 change

In src/cli/mod.rs, lines 1111–1128 on 1b2ce97050fe04fbb606cd8e4b26741c4a0292ab378a180572a9aeb17dcc62d9. 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 1111,1128:src/cli/mod.rs.