History of help_tests::walk 1 change

In src/cli/mod.rs, lines 1178–1195 on 7757367bedcce67d0a6975d8ccbc58db3232141f60a680ffc50b24e0a2794add. 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.