TST: linalg: refactor test_heequb to improve failure message
TST: linalg: refactor test_heequb to improve failure message

Stefan-Endres/scipy,Stefan-Endres/scipy,anntzer/scipy,WarrenWeckesser/scipy,matthew-brett/scipy,anntzer/scipy,endolith/scipy,e-q/scipy,zerothi/scipy,pizzathief/scipy,anntzer/scipy,rgommers/scipy,person142/scipy,perimosocordiae/scipy,mdhaber/scipy,grlee77/scipy,ilayn/scipy,andyfaff/scipy,zerothi/scipy,zerothi/scipy,endolith/scipy,e-q/scipy,andyfaff/scipy,andyfaff/scipy,Eric89GXL/scipy,endolith/scipy,andyfaff/scipy,scipy/scipy,Stefan-Endres/scipy,andyfaff/scipy,mdhaber/scipy,nmayorov/scipy,matthew-brett/scipy,rgommers/scipy,perimosocordiae/scipy,tylerjereddy/scipy,Eric89GXL/scipy,andyfaff/scipy,matthew-brett/scipy,Stefan-Endres/scipy,Eric89GXL/scipy,grlee77/scipy,ilayn/scipy,tylerjereddy/scipy,person142/scipy,ilayn/scipy,person142/scipy,grlee77/scipy,tylerjereddy/scipy,zerothi/scipy,mdhaber/scipy,scipy/scipy,e-q/scipy,scipy/scipy,WarrenWeckesser/scipy,nmayorov/scipy,pizzathief/scipy,endolith/scipy,mdhaber/scipy,endolith/scipy,e-q/scipy,tylerjereddy/scipy,WarrenWeckesser/scipy,Eric89GXL/scipy,matthew-brett/scipy,vigna/scipy,Eric89GXL/scipy,ilayn/scipy,anntzer/scipy,anntzer/scipy,grlee77/scipy,perimosocordiae/scipy,vigna/scipy,zerothi/scipy,mdhaber/scipy,scipy/scipy,Eric89GXL/scipy,matthew-brett/scipy,pizzathief/scipy,vigna/scipy,nmayorov/scipy,rgommers/scipy,pizzathief/scipy,rgommers/scipy,scipy/scipy,ilayn/scipy,anntzer/scipy,perimosocordiae/scipy,nmayorov/scipy,WarrenWeckesser/scipy,perimosocordiae/scipy,person142/scipy,Stefan-Endres/scipy,e-q/scipy,WarrenWeckesser/scipy,Stefan-Endres/scipy,ilayn/scipy,rgommers/scipy,vigna/scipy,grlee77/scipy,pizzathief/scipy,mdhaber/scipy,person142/scipy,WarrenWeckesser/scipy,nmayorov/scipy,scipy/scipy,vigna/scipy,endolith/scipy,perimosocordiae/scipy,zerothi/scipy,tylerjereddy/scipy