History of get 1 change

In tests/fetch_klaus.py, lines 39–54 on 2980b7b6d7cdf3928225cc12b965cc5c497b02b98a2ab5cf271549a7dfbe0c1e. 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 39,54:tests/fetch_klaus.py.