MAINT: fix CI pycodestyle fails
MAINT: fix CI pycodestyle fails

* fix the two CI `pycodestyle` failures observable in latest
`master` branch merge:
https://travis-ci.org/github/scipy/scipy/jobs/741128508

mdhaber/scipy,vigna/scipy,perimosocordiae/scipy,WarrenWeckesser/scipy,Eric89GXL/scipy,andyfaff/scipy,matthew-brett/scipy,grlee77/scipy,ilayn/scipy,scipy/scipy,Eric89GXL/scipy,nmayorov/scipy,scipy/scipy,WarrenWeckesser/scipy,e-q/scipy,tylerjereddy/scipy,endolith/scipy,Stefan-Endres/scipy,grlee77/scipy,matthew-brett/scipy,anntzer/scipy,tylerjereddy/scipy,rgommers/scipy,endolith/scipy,scipy/scipy,mdhaber/scipy,rgommers/scipy,ilayn/scipy,Eric89GXL/scipy,perimosocordiae/scipy,Stefan-Endres/scipy,andyfaff/scipy,endolith/scipy,vigna/scipy,Stefan-Endres/scipy,ilayn/scipy,vigna/scipy,matthew-brett/scipy,vigna/scipy,anntzer/scipy,grlee77/scipy,perimosocordiae/scipy,matthew-brett/scipy,ilayn/scipy,andyfaff/scipy,zerothi/scipy,zerothi/scipy,WarrenWeckesser/scipy,andyfaff/scipy,WarrenWeckesser/scipy,perimosocordiae/scipy,nmayorov/scipy,perimosocordiae/scipy,e-q/scipy,WarrenWeckesser/scipy,mdhaber/scipy,ilayn/scipy,matthew-brett/scipy,rgommers/scipy,WarrenWeckesser/scipy,e-q/scipy,anntzer/scipy,scipy/scipy,mdhaber/scipy,zerothi/scipy,anntzer/scipy,zerothi/scipy,anntzer/scipy,perimosocordiae/scipy,endolith/scipy,nmayorov/scipy,tylerjereddy/scipy,vigna/scipy,e-q/scipy,rgommers/scipy,Eric89GXL/scipy,scipy/scipy,grlee77/scipy,Stefan-Endres/scipy,andyfaff/scipy,mdhaber/scipy,ilayn/scipy,grlee77/scipy,Stefan-Endres/scipy,rgommers/scipy,zerothi/scipy,nmayorov/scipy,e-q/scipy,anntzer/scipy,Stefan-Endres/scipy,endolith/scipy,andyfaff/scipy,Eric89GXL/scipy,mdhaber/scipy,zerothi/scipy,tylerjereddy/scipy,Eric89GXL/scipy,scipy/scipy,nmayorov/scipy,endolith/scipy,tylerjereddy/scipy