TST: Update exp test to check for spurious over and underflow flag
TST: Update exp test to check for spurious over and underflow flag

charris/numpy,pdebuyl/numpy,numpy/numpy,mattip/numpy,rgommers/numpy,anntzer/numpy,seberg/numpy,anntzer/numpy,mhvk/numpy,endolith/numpy,jakirkham/numpy,jakirkham/numpy,anntzer/numpy,seberg/numpy,mattip/numpy,charris/numpy,rgommers/numpy,seberg/numpy,mhvk/numpy,pdebuyl/numpy,mhvk/numpy,numpy/numpy,anntzer/numpy,mhvk/numpy,mattip/numpy,endolith/numpy,rgommers/numpy,seberg/numpy,mattip/numpy,mhvk/numpy,pdebuyl/numpy,jakirkham/numpy,numpy/numpy,charris/numpy,pdebuyl/numpy,numpy/numpy,endolith/numpy,rgommers/numpy,charris/numpy,jakirkham/numpy,endolith/numpy,jakirkham/numpy