History of help_tests::walk 1 change

In src/cli/mod.rs, lines 1178–1195 on 3da45015f6f4f32db6d3804b79f99ce1d8632e822e876a0bd856838c8d71221a. 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 1178,1195:src/cli/mod.rs.