History of help_tests::walk 1 change

In src/cli/mod.rs, lines 1189–1206 on 5f661562b3a40a970261ee737f225c646ce7f918bdac7ad5d8b2ccde1bde8f53. 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 1189,1206:src/cli/mod.rs.