Minor cleanup for setup.py
Minor cleanup for setup.py

avalentino/PyTables,rabernat/PyTables,tp199911/PyTables,cpcloud/PyTables,tp199911/PyTables,mohamed-ali/PyTables,rdhyee/PyTables,cpcloud/PyTables,jack-pappas/PyTables,PyTables/PyTables,rdhyee/PyTables,jack-pappas/PyTables,jack-pappas/PyTables,jennolsen84/PyTables,PyTables/PyTables,joonro/PyTables,mohamed-ali/PyTables,joonro/PyTables,avalentino/PyTables,gdementen/PyTables,avalentino/PyTables,FrancescAlted/PyTables,gdementen/PyTables,FrancescAlted/PyTables,mohamed-ali/PyTables,tp199911/PyTables,jennolsen84/PyTables,andreabedini/PyTables,dotsdl/PyTables,andreabedini/PyTables,dotsdl/PyTables,PyTables/PyTables,rabernat/PyTables,rabernat/PyTables,cpcloud/PyTables,FrancescAlted/PyTables,gdementen/PyTables,jack-pappas/PyTables,rdhyee/PyTables,jack-pappas/PyTables,tp199911/PyTables,rabernat/PyTables,mohamed-ali/PyTables,joonro/PyTables,jennolsen84/PyTables,joonro/PyTables,dotsdl/PyTables,dotsdl/PyTables,cpcloud/PyTables,rdhyee/PyTables,andreabedini/PyTables,jennolsen84/PyTables,gdementen/PyTables,andreabedini/PyTables