[python3] robot.running.namespace: Use itertools.chain to combine sequences
[python3] robot.running.namespace: Use itertools.chain to combine sequences

--HG--
extra : transplant_source : %0B%13I%87%C5%7FW%FBI%96%ECj%F79%2A%0F%03o%EF%CB

userzimmermann/robotframework,userzimmermann/robotframework,userzimmermann/robotframework,userzimmermann/robotframework,userzimmermann/robotframework