travis: unset GEMPATH.
travis: unset GEMPATH.

Travis CI support suggested this as the correct solution for some
recent changes in their environment that make ruby segfault.

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