build: Make the copy task for the WikimediaUI less vars less confusing
build: Make the copy task for the WikimediaUI less vars less confusing

Change-Id: I92c01af9c5fbe8c169d752233f99a387ad99bafc

wikimedia/oojs-ui,wikimedia/oojs-ui,wikimedia/oojs-ui,wikimedia/oojs-ui