generate_test_credentials: Use the email variable properly.
generate_test_credentials: Use the email variable properly.

This makes it a bit easier to change the email in the test
credentials.

j831/zulip,Frouk/zulip,dawran6/zulip,Vallher/zulip,tommyip/zulip,rht/zulip,KingxBanana/zulip,sonali0901/zulip,vabs22/zulip,isht3/zulip,aakash-cr7/zulip,cosmicAsymmetry/zulip,calvinleenyc/zulip,dawran6/zulip,TigorC/zulip,paxapy/zulip,dwrpayne/zulip,dawran6/zulip,peiwei/zulip,niftynei/zulip,peiwei/zulip,vikas-parashar/zulip,KingxBanana/zulip,showell/zulip,Galexrt/zulip,hackerkid/zulip,jrowan/zulip,dattatreya303/zulip,verma-varsha/zulip,synicalsyntax/zulip,joyhchen/zulip,paxapy/zulip,amyliu345/zulip,isht3/zulip,Vallher/zulip,souravbadami/zulip,TigorC/zulip,samatdav/zulip,sharmaeklavya2/zulip,vaidap/zulip,eeshangarg/zulip,zulip/zulip,jainayush975/zulip,rishig/zulip,sharmaeklavya2/zulip,blaze225/zulip,susansls/zulip,isht3/zulip,mahim97/zulip,aakash-cr7/zulip,timabbott/zulip,cosmicAsymmetry/zulip,Vallher/zulip,jphilipsen05/zulip,punchagan/zulip,synicalsyntax/zulip,SmartPeople/zulip,SmartPeople/zulip,Jianchun1/zulip,hackerkid/zulip,AZtheAsian/zulip,Juanvulcano/zulip,ryanbackman/zulip,dhcrzf/zulip,jackrzhang/zulip,susansls/zulip,peguin40/zulip,AZtheAsian/zulip,Jianchun1/zulip,Galexrt/zulip,peiwei/zulip,Diptanshu8/zulip,krtkmj/zulip,rishig/zulip,hackerkid/zulip,tommyip/zulip,calvinleenyc/zulip,amanharitsh123/zulip,isht3/zulip,vabs22/zulip,timabbott/zulip,dawran6/zulip,rht/zulip,susansls/zulip,dattatreya303/zulip,synicalsyntax/zulip,sup95/zulip,Diptanshu8/zulip,tommyip/zulip,ryanbackman/zulip,vikas-parashar/zulip,sonali0901/zulip,Juanvulcano/zulip,blaze225/zulip,krtkmj/zulip,krtkmj/zulip,dhcrzf/zulip,tommyip/zulip,joyhchen/zulip,timabbott/zulip,shubhamdhama/zulip,dwrpayne/zulip,PhilSk/zulip,peguin40/zulip,KingxBanana/zulip,sonali0901/zulip,kou/zulip,andersk/zulip,ryanbackman/zulip,vabs22/zulip,PhilSk/zulip,krtkmj/zulip,jrowan/zulip,jrowan/zulip,punchagan/zulip,susansls/zulip,cosmicAsymmetry/zulip,krtkmj/zulip,synicalsyntax/zulip,Jianchun1/zulip,TigorC/zulip,souravbadami/zulip,joyhchen/zulip,arpith/zulip,rht/zulip,grave-w-grave/zulip,sharmaeklavya2/zulip,aakash-cr7/zulip,andersk/zulip,susansls/zulip,showell/zulip,umkay/zulip,Galexrt/zulip,brockwhittaker/zulip,rishig/zulip,cosmicAsymmetry/zulip,SmartPeople/zulip,JPJPJPOPOP/zulip,zacps/zulip,JPJPJPOPOP/zulip,AZtheAsian/zulip,arpith/zulip,showell/zulip,cosmicAsymmetry/zulip,shubhamdhama/zulip,timabbott/zulip,calvinleenyc/zulip,PhilSk/zulip,amanharitsh123/zulip,ahmadassaf/zulip,jackrzhang/zulip,Galexrt/zulip,christi3k/zulip,JPJPJPOPOP/zulip,rht/zulip,brainwane/zulip,timabbott/zulip,Juanvulcano/zulip,christi3k/zulip,tommyip/zulip,zacps/zulip,grave-w-grave/zulip,christi3k/zulip,eeshangarg/zulip,rht/zulip,Juanvulcano/zulip,jphilipsen05/zulip,ahmadassaf/zulip,hackerkid/zulip,sharmaeklavya2/zulip,eeshangarg/zulip,jrowan/zulip,Vallher/zulip,paxapy/zulip,hackerkid/zulip,vabs22/zulip,niftynei/zulip,krtkmj/zulip,andersk/zulip,mahim97/zulip,dwrpayne/zulip,reyha/zulip,dwrpayne/zulip,tommyip/zulip,vabs22/zulip,eeshangarg/zulip,samatdav/zulip,rishig/zulip,calvinleenyc/zulip,amyliu345/zulip,TigorC/zulip,mahim97/zulip,Frouk/zulip,j831/zulip,vikas-parashar/zulip,jainayush975/zulip,ahmadassaf/zulip,zulip/zulip,brainwane/zulip,showell/zulip,vaidap/zulip,krtkmj/zulip,brockwhittaker/zulip,PhilSk/zulip,sonali0901/zulip,Juanvulcano/zulip,christi3k/zulip,dawran6/zulip,grave-w-grave/zulip,synicalsyntax/zulip,dhcrzf/zulip,reyha/zulip,sharmaeklavya2/zulip,brockwhittaker/zulip,JPJPJPOPOP/zulip,verma-varsha/zulip,niftynei/zulip,sonali0901/zulip,blaze225/zulip,brainwane/zulip,dhcrzf/zulip,ahmadassaf/zulip,j831/zulip,sonali0901/zulip,ryanbackman/zulip,blaze225/zulip,kou/zulip,brockwhittaker/zulip,dwrpayne/zulip,sup95/zulip,rht/zulip,jphilipsen05/zulip,peguin40/zulip,SmartPeople/zulip,brainwane/zulip,timabbott/zulip,peiwei/zulip,dhcrzf/zulip,sup95/zulip,AZtheAsian/zulip,dattatreya303/zulip,Galexrt/zulip,vaidap/zulip,Vallher/zulip,dattatreya303/zulip,eeshangarg/zulip,SmartPeople/zulip,amanharitsh123/zulip,Diptanshu8/zulip,souravbadami/zulip,ryanbackman/zulip,umkay/zulip,peiwei/zulip,samatdav/zulip,umkay/zulip,jackrzhang/zulip,dattatreya303/zulip,samatdav/zulip,jainayush975/zulip,andersk/zulip,dhcrzf/zulip,SmartPeople/zulip,jainayush975/zulip,ahmadassaf/zulip,mohsenSy/zulip,Vallher/zulip,AZtheAsian/zulip,rishig/zulip,KingxBanana/zulip,verma-varsha/zulip,zacps/zulip,mohsenSy/zulip,reyha/zulip,vikas-parashar/zulip,kou/zulip,jackrzhang/zulip,amanharitsh123/zulip,niftynei/zulip,kou/zulip,Frouk/zulip,paxapy/zulip,JPJPJPOPOP/zulip,amyliu345/zulip,souravbadami/zulip,tommyip/zulip,peiwei/zulip,mohsenSy/zulip,AZtheAsian/zulip,sup95/zulip,verma-varsha/zulip,synicalsyntax/zulip,grave-w-grave/zulip,punchagan/zulip,reyha/zulip,shubhamdhama/zulip,PhilSk/zulip,jrowan/zulip,Juanvulcano/zulip,calvinleenyc/zulip,kou/zulip,sup95/zulip,Diptanshu8/zulip,rishig/zulip,jphilipsen05/zulip,Jianchun1/zulip,eeshangarg/zulip,showell/zulip,niftynei/zulip,zulip/zulip,cosmicAsymmetry/zulip,ahmadassaf/zulip,peiwei/zulip,umkay/zulip,timabbott/zulip,vaidap/zulip,amanharitsh123/zulip,mahim97/zulip,arpith/zulip,sup95/zulip,j831/zulip,arpith/zulip,kou/zulip,Jianchun1/zulip,isht3/zulip,isht3/zulip,mohsenSy/zulip,Diptanshu8/zulip,Vallher/zulip,sharmaeklavya2/zulip,vabs22/zulip,grave-w-grave/zulip,vikas-parashar/zulip,Frouk/zulip,peguin40/zulip,JPJPJPOPOP/zulip,calvinleenyc/zulip,punchagan/zulip,niftynei/zulip,samatdav/zulip,souravbadami/zulip,showell/zulip,jrowan/zulip,zacps/zulip,christi3k/zulip,brainwane/zulip,amyliu345/zulip,Diptanshu8/zulip,verma-varsha/zulip,andersk/zulip,verma-varsha/zulip,paxapy/zulip,hackerkid/zulip,rishig/zulip,showell/zulip,joyhchen/zulip,KingxBanana/zulip,peguin40/zulip,TigorC/zulip,arpith/zulip,aakash-cr7/zulip,amyliu345/zulip,jackrzhang/zulip,Frouk/zulip,punchagan/zulip,j831/zulip,christi3k/zulip,punchagan/zulip,mahim97/zulip,brockwhittaker/zulip,amyliu345/zulip,blaze225/zulip,zacps/zulip,synicalsyntax/zulip,vaidap/zulip,jphilipsen05/zulip,aakash-cr7/zulip,susansls/zulip,samatdav/zulip,Jianchun1/zulip,joyhchen/zulip,vikas-parashar/zulip,andersk/zulip,ryanbackman/zulip,blaze225/zulip,grave-w-grave/zulip,brainwane/zulip,peguin40/zulip,mohsenSy/zulip,rht/zulip,reyha/zulip,souravbadami/zulip,PhilSk/zulip,jphilipsen05/zulip,ahmadassaf/zulip,joyhchen/zulip,zulip/zulip,shubhamdhama/zulip,shubhamdhama/zulip,paxapy/zulip,umkay/zulip,jackrzhang/zulip,amanharitsh123/zulip,Frouk/zulip,Frouk/zulip,brainwane/zulip,zacps/zulip,zulip/zulip,punchagan/zulip,mohsenSy/zulip,jainayush975/zulip,jackrzhang/zulip,arpith/zulip,TigorC/zulip,Galexrt/zulip,shubhamdhama/zulip,zulip/zulip,eeshangarg/zulip,jainayush975/zulip,dwrpayne/zulip,dhcrzf/zulip,dattatreya303/zulip,KingxBanana/zulip,hackerkid/zulip,brockwhittaker/zulip,Galexrt/zulip,dawran6/zulip,umkay/zulip,zulip/zulip,shubhamdhama/zulip,mahim97/zulip,kou/zulip,vaidap/zulip,aakash-cr7/zulip,reyha/zulip,dwrpayne/zulip,umkay/zulip,andersk/zulip,j831/zulip