check whether the variable is empty rather than an empty string
check whether the variable is empty rather than an empty string

ChaosCloud/chef,josb/chef,jimmymccrory/chef,mikedodge04/chef,nsdavidson/chef,legal90/chef,3dinfluence/chef,nguyen-tien-mulodo/chef,renanvicente/chef,mikedodge04/chef,gene1wood/chef,clintoncwolfe/chef,criteo-forks/chef,h4ck3rm1k3/chef,antonifs/chef,josb/chef,tomdoherty/chef,ducthanh/chef,sideci-sample/sideci-sample-chef,jaymzh/chef,jmhardison/chef,kaznishi/chef,tomdoherty/chef,zshuo/chef,MsysTechnologiesllc/chef,nicklv/chef,b002368/chef-repo,DeWaRs1206/chef,jagdeesh109/chef,nellshamrell/chef,ducthanh/chef,jk47/chef,ekometti/chef,criteo-forks/chef,antonifs/chef,robmul/chef,tbriggs-curse/chef,brettcave/chef,Tensibai/chef,evan2645/chef,smurawski/chef,BackSlasher/chef,strangelittlemonkey/chef,Ppjet6/chef,ckaushik/chef,nellshamrell/chef,kaznishi/chef,Ppjet6/chef,josb/chef,faspl/chef,legal90/chef,nathwill/chef,mattray/chef,ccsplit/chef,jmhardison/chef,circleback/chef,webframp/chef,jk47/chef,martinb3/chef,erkolson/chef,swalberg/chef,permyakovsv/chef,Ppjet6/chef,danielsdeleo/seth,gsaslis/chef,webframp/chef,zshuo/chef,joemiller/chef,sempervictus/chef,danielsdeleo/seth,jonlives/chef,jordane/chef,Kast0rTr0y/chef,kaznishi/chef,Tensibai/chef,Kast0rTr0y/chef,tbunnyman/chef,sometimesfood/chef,jonlives/chef,karthikrev/chef,jk47/chef,mal/chef,sekrett/chef,adamleff/chef,ranjib/chef,zuazo-forks/chef,tbunnyman/chef,sekrett/chef,karthikrev/chef,sempervictus/chef,docwhat/chef,cgvarela/chef,antonifs/chef,MichaelPereira/chef,circleback/chef,h4ck3rm1k3/chef,Kast0rTr0y/chef,acaiafa/chef,strangelittlemonkey/chef,ranjib/chef,acaiafa/chef,mal/chef,Igorshp/chef,acaiafa/chef,3dinfluence/chef,evan2645/chef,pburkholder/chef,ktpan/chef-play,evan2645/chef,strangelittlemonkey/chef,cgvarela/chef,OpSitters/chef,permyakovsv/chef,polamjag/chef,joemiller/chef,cmluciano/chef,martinb3/chef,sempervictus/chef,joemiller/chef,ccsplit/chef,ckaushik/chef,bahamas10/chef,MichaelPereira/chef,malisettirammurthy/chef,faspl/chef,kaznishi/chef,jblaine/chef,askl56/chef,Kast0rTr0y/chef,nalingarg2/chef-1,nguyen-tien-mulodo/chef,nathwill/chef,docwhat/chef,erkolson/chef,BackSlasher/chef,docwhat/chef,jonlives/chef,mal/chef,swalberg/chef,gene1wood/chef,sometimesfood/chef,jk47/chef,andrewpsp/chef,aaron-lane/chef,3dinfluence/chef,DeWaRs1206/chef,skmichaelson/chef,gsaslis/chef,youngjl1/chef,AndyBoucher/Chef-Testing,polamjag/chef,OpSitters/chef,jmhardison/chef,onlyhavecans/chef,sekrett/chef,zshuo/chef,mio-g/chef,AndyBoucher/Chef-Testing,askl56/chef,MsysTechnologiesllc/chef,cmluciano/chef,natewalck/chef,jimmymccrory/chef,renanvicente/chef,sometimesfood/chef,sanditiffin/chef,higanworks/chef,smurawski/chef,smurawski/chef,grubernaut/chef,sometimesfood/chef,nicklv/chef,nalingarg2/chef-1,BackSlasher/chef,evan2645/chef,nsdavidson/chef,criteo-forks/chef,permyakovsv/chef,cmluciano/chef,cachamber/chef,robmul/chef,DeWaRs1206/chef,MsysTechnologiesllc/chef,h4ck3rm1k3/chef,mattray/chef,jmhardison/chef,jordane/chef,ChaosCloud/chef,acaiafa/chef,onlyhavecans/chef,natewalck/chef,jonlives/chef,sanditiffin/chef,criteo-forks/chef,permyakovsv/chef,nalingarg2/chef-1,cmluciano/chef,smurawski/chef,oclaussen/chef,strangelittlemonkey/chef,ckaushik/chef,patcon/chef,sempervictus/chef,patcon/chef,jblaine/chef,polamjag/chef,robmul/chef,permyakovsv/chef,grubernaut/chef,mio-g/chef,malisettirammurthy/chef,webframp/chef,lamont-granquist/chef,higanworks/chef,nalingarg2/chef-1,tas50/chef-1,nguyen-tien-mulodo/chef,nathwill/chef,nathwill/chef,jaymzh/chef,custora/chef,paulmooring/chef,cachamber/chef,nvwls/chef,evan2645/chef,chef/chef,jaymzh/chef,jkerry/chef,aaron-lane/chef,gsaslis/chef,jimmymccrory/chef,someara/chef,sideci-sample/sideci-sample-chef,faspl/chef,zuazo-forks/chef,AndyBoucher/Chef-Testing,Kast0rTr0y/chef,nvwls/chef,sekrett/chef,mwrock/chef,nguyen-tien-mulodo/chef,andrewpsp/chef,renanvicente/chef,strangelittlemonkey/chef,Igorshp/chef,aaron-lane/chef,nvwls/chef,aaron-lane/chef,h4ck3rm1k3/chef,paulmooring/chef,faspl/chef,MichaelPereira/chef,EasonYi/chef,jkerry/chef,cgvarela/chef,jblaine/chef,ranjib/chef,mal/chef,Igorshp/chef,jmhardison/chef,renanvicente/chef,nsdavidson/chef,3dinfluence/chef,tas50/chef-1,polamjag/chef,patcon/chef,jordane/chef,OpSitters/chef,tas50/chef-1,ckaushik/chef,nvwls/chef,custora/chef,skmichaelson/chef,bahamas10/chef,h4ck3rm1k3/chef,b002368/chef-repo,someara/chef,Tensibai/chef,malisettirammurthy/chef,ccsplit/chef,skmichaelson/chef,mikefaille/chef,EasonYi/chef,nalingarg2/chef-1,askl56/chef,nvwls/chef,josb/chef,jblaine/chef,ducthanh/chef,ranjib/chef,jmhardison/chef,tbriggs-curse/chef,ktpan/chef-play,bahamas10/chef,grubernaut/chef,Tensibai/chef,swalberg/chef,onlyhavecans/chef,smurawski/chef,nsdavidson/chef,malisettirammurthy/chef,ducthanh/chef,tomdoherty/chef,sempervictus/chef,gene1wood/chef,adamleff/chef,nvwls/chef,criteo-forks/chef,zshuo/chef,robmul/chef,mikedodge04/chef,DeWaRs1206/chef,mio-g/chef,baberthal/chef,criteo-forks/chef,baberthal/chef,gene1wood/chef,juliandunn/chef,h4ck3rm1k3/chef,joemiller/chef,ranjib/chef,b002368/chef-repo,lamont-granquist/chef,ktpan/chef-play,mikedodge04/chef,OpSitters/chef,tbunnyman/chef,custora/chef,brettcave/chef,jordane/chef,skmichaelson/chef,antonifs/chef,OpSitters/chef,mio-g/chef,onlyhavecans/chef,sideci-sample/sideci-sample-chef,mikefaille/chef,zuazo-forks/chef,tbriggs-curse/chef,martinb3/chef,andrewpsp/chef,mal/chef,permyakovsv/chef,nguyen-tien-mulodo/chef,b002368/chef-repo,Ppjet6/chef,sekrett/chef,cachamber/chef,juliandunn/chef,MichaelPereira/chef,erkolson/chef,clintoncwolfe/chef,josb/chef,cachamber/chef,patcon/chef,baberthal/chef,sideci-sample/sideci-sample-chef,MichaelPereira/chef,mikefaille/chef,ChaosCloud/chef,brettcave/chef,jagdeesh109/chef,onlyhavecans/chef,martinisoft/chef,ekometti/chef,askl56/chef,natewalck/chef,mio-g/chef,andrewpsp/chef,nellshamrell/chef,juliandunn/chef,BackSlasher/chef,BackSlasher/chef,renanvicente/chef,webframp/chef,docwhat/chef,sanditiffin/chef,MsysTechnologiesllc/chef,ckaushik/chef,jordane/chef,jimmymccrory/chef,ktpan/chef-play,custora/chef,AndyBoucher/Chef-Testing,pburkholder/chef,jkerry/chef,polamjag/chef,jblaine/chef,b002368/chef-repo,EasonYi/chef,robmul/chef,natewalck/chef,antonifs/chef,Igorshp/chef,clintoncwolfe/chef,patcon/chef,cgvarela/chef,youngjl1/chef,tbunnyman/chef,b002368/chef-repo,nicklv/chef,kaznishi/chef,erkolson/chef,strangelittlemonkey/chef,docwhat/chef,webframp/chef,karthikrev/chef,legal90/chef,mattray/chef,docwhat/chef,ktpan/chef-play,baberthal/chef,cgvarela/chef,paulmooring/chef,mio-g/chef,martinisoft/chef,ChaosCloud/chef,clintoncwolfe/chef,martinb3/chef,ekometti/chef,ekometti/chef,circleback/chef,gsaslis/chef,malisettirammurthy/chef,clintoncwolfe/chef,chef/chef,erkolson/chef,gsaslis/chef,aaron-lane/chef,zuazo-forks/chef,zshuo/chef,oclaussen/chef,lamont-granquist/chef,skmichaelson/chef,mattray/chef,danielsdeleo/seth,jk47/chef,legal90/chef,jagdeesh109/chef,sideci-sample/sideci-sample-chef,legal90/chef,pburkholder/chef,jonlives/chef,AndyBoucher/Chef-Testing,cgvarela/chef,jagdeesh109/chef,bahamas10/chef,nicklv/chef,smurawski/chef,zuazo-forks/chef,joemiller/chef,adamleff/chef,tbunnyman/chef,faspl/chef,tomdoherty/chef,acaiafa/chef,ducthanh/chef,jaymzh/chef,ccsplit/chef,sempervictus/chef,mikedodge04/chef,mwrock/chef,brettcave/chef,ekometti/chef,nicklv/chef,jblaine/chef,ccsplit/chef,mwrock/chef,brettcave/chef,Ppjet6/chef,gsaslis/chef,natewalck/chef,juliandunn/chef,mikedodge04/chef,joemiller/chef,grubernaut/chef,ktpan/chef-play,lamont-granquist/chef,someara/chef,natewalck/chef,nellshamrell/chef,someara/chef,josb/chef,martinb3/chef,webframp/chef,higanworks/chef,paulmooring/chef,tbriggs-curse/chef,custora/chef,oclaussen/chef,paulmooring/chef,danielsdeleo/seth,mikefaille/chef,martinisoft/chef,DeWaRs1206/chef,ducthanh/chef,nsdavidson/chef,faspl/chef,swalberg/chef,pburkholder/chef,baberthal/chef,higanworks/chef,cachamber/chef,someara/chef,lamont-granquist/chef,antonifs/chef,3dinfluence/chef,nellshamrell/chef,cmluciano/chef,jimmymccrory/chef,tbriggs-curse/chef,skmichaelson/chef,swalberg/chef,baberthal/chef,polamjag/chef,tbriggs-curse/chef,sometimesfood/chef,askl56/chef,mikefaille/chef,karthikrev/chef,nguyen-tien-mulodo/chef,MichaelPereira/chef,youngjl1/chef,chef/chef,ckaushik/chef,nicklv/chef,youngjl1/chef,malisettirammurthy/chef,pburkholder/chef,martinisoft/chef,Tensibai/chef,mwrock/chef,EasonYi/chef,custora/chef,tas50/chef-1,DeWaRs1206/chef,askl56/chef,OpSitters/chef,sanditiffin/chef,EasonYi/chef,youngjl1/chef,aaron-lane/chef,adamleff/chef,tbunnyman/chef,karthikrev/chef,higanworks/chef,jk47/chef,danielsdeleo/seth,jagdeesh109/chef,jonlives/chef,ccsplit/chef,zshuo/chef,renanvicente/chef,mattray/chef,legal90/chef,oclaussen/chef,andrewpsp/chef,grubernaut/chef,adamleff/chef,grubernaut/chef,nathwill/chef,sekrett/chef,kaznishi/chef,nathwill/chef,AndyBoucher/Chef-Testing,oclaussen/chef,sometimesfood/chef,martinisoft/chef,sanditiffin/chef,lamont-granquist/chef,ChaosCloud/chef,jkerry/chef,ChaosCloud/chef,evan2645/chef,martinb3/chef,Kast0rTr0y/chef,zuazo-forks/chef,tomdoherty/chef,andrewpsp/chef,Ppjet6/chef,mal/chef,karthikrev/chef,jkerry/chef,Igorshp/chef,jagdeesh109/chef,acaiafa/chef,circleback/chef,paulmooring/chef,oclaussen/chef,swalberg/chef,erkolson/chef,circleback/chef,youngjl1/chef,nalingarg2/chef-1,EasonYi/chef,someara/chef,mikefaille/chef,brettcave/chef,bahamas10/chef,sanditiffin/chef,BackSlasher/chef,3dinfluence/chef,robmul/chef,circleback/chef,nellshamrell/chef,jimmymccrory/chef,nsdavidson/chef,Igorshp/chef,jkerry/chef,onlyhavecans/chef,bahamas10/chef,ranjib/chef,juliandunn/chef,ekometti/chef,cachamber/chef,patcon/chef,adamleff/chef,clintoncwolfe/chef,chef/chef,pburkholder/chef