History of _emptyDirectory 1 change

In build/package-windows/packagewindows.py, lines 17–22 on main. 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 17,22:build/package-windows/packagewindows.py.