History of help_tests::walk 1 change

In src/cli/mod.rs, lines 1200–1217 on 02e691881a4e2663acf3af94905a759fc0bde2791d3264f6ee76bfe7dc30eec2. 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 1200,1217:src/cli/mod.rs.