History of help_tests::walk 1 change

In src/cli/mod.rs, lines 1054–1071 on 8c30d814f2cc6160bd620a48f70c002991c2ef13fa46565a77151c2854b0c13d. 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 1054,1071:src/cli/mod.rs.