clarify mac pytest; add blank line
clarify mac pytest; add blank line

tylerjereddy/scipy,anntzer/scipy,mdhaber/scipy,Stefan-Endres/scipy,grlee77/scipy,mdhaber/scipy,rgommers/scipy,Stefan-Endres/scipy,perimosocordiae/scipy,matthew-brett/scipy,mdhaber/scipy,perimosocordiae/scipy,andyfaff/scipy,Stefan-Endres/scipy,endolith/scipy,tylerjereddy/scipy,endolith/scipy,ilayn/scipy,vigna/scipy,ilayn/scipy,zerothi/scipy,mdhaber/scipy,endolith/scipy,WarrenWeckesser/scipy,zerothi/scipy,mdhaber/scipy,matthew-brett/scipy,mdhaber/scipy,Stefan-Endres/scipy,matthew-brett/scipy,zerothi/scipy,zerothi/scipy,anntzer/scipy,anntzer/scipy,scipy/scipy,vigna/scipy,matthew-brett/scipy,Stefan-Endres/scipy,scipy/scipy,grlee77/scipy,endolith/scipy,anntzer/scipy,ilayn/scipy,perimosocordiae/scipy,grlee77/scipy,WarrenWeckesser/scipy,WarrenWeckesser/scipy,vigna/scipy,zerothi/scipy,tylerjereddy/scipy,andyfaff/scipy,rgommers/scipy,perimosocordiae/scipy,anntzer/scipy,ilayn/scipy,WarrenWeckesser/scipy,WarrenWeckesser/scipy,scipy/scipy,perimosocordiae/scipy,zerothi/scipy,scipy/scipy,rgommers/scipy,WarrenWeckesser/scipy,perimosocordiae/scipy,vigna/scipy,vigna/scipy,grlee77/scipy,andyfaff/scipy,rgommers/scipy,andyfaff/scipy,matthew-brett/scipy,andyfaff/scipy,Stefan-Endres/scipy,tylerjereddy/scipy,rgommers/scipy,ilayn/scipy,andyfaff/scipy,scipy/scipy,anntzer/scipy,ilayn/scipy,endolith/scipy,endolith/scipy,tylerjereddy/scipy,scipy/scipy,grlee77/scipy