History of help_tests::walk 1 change

In src/cli/mod.rs, lines 1193–1210 on a17fc622ca439a6b809f2ce59d8fc719e39c83a2db1f181b8f1e9dfaf2bea01d. 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 1193,1210:src/cli/mod.rs.