kubeadm: fix the lint failure where return value is not checked
kubeadm: fix the lint failure where return value is not checked

Signed-off-by: SataQiu <97f8eee8b07d4f77a6c69aae5541a91d543b9018@qq.com>

mikebrow/kubernetes,liggitt/kubernetes,fgimenez/kubernetes,sdminonne/kubernetes,tomzhang/kubernetes,olivierlemasle/kubernetes,iameli/kubernetes,gnufied/kubernetes,enj/kubernetes,wongma7/kubernetes,dereknex/kubernetes,tpepper/kubernetes,tengqm/kubernetes,saad-ali/kubernetes,thockin/kubernetes,ping035627/kubernetes,joelsmith/kubernetes,tengqm/kubernetes,jingxu97/kubernetes,humblec/kubernetes,BenTheElder/kubernetes,mengqiy/kubernetes,fgimenez/kubernetes,PiotrProkop/kubernetes,openshift/kubernetes,lojies/kubernetes,GulajavaMinistudio/kubernetes,joelsmith/kubernetes,verult/kubernetes,feiskyer/kubernetes,verb/kubernetes,alejandroEsc/kubernetes,zhouhaibing089/kubernetes,ravisantoshgudimetla/kubernetes,nak3/kubernetes,alejandroEsc/kubernetes,cblecker/kubernetes,chestack/kubernetes,k82cn/kubernetes,verb/kubernetes,fanzhangio/kubernetes,micahhausler/kubernetes,kubernetes/kubernetes,krmayankk/kubernetes,xychu/kubernetes,dims/kubernetes,brendandburns/kubernetes,MikeSpreitzer/kubernetes,alejandroEsc/kubernetes,fabriziopandini/kubernetes,chrislovecnm/kubernetes,gnufied/kubernetes,kpgriffith/kubernetes,zhouhaibing089/kubernetes,ravisantoshgudimetla/kubernetes,jackfrancis/kubernetes,micahhausler/kubernetes,Acidburn0zzz/kubernetes,pires/kubernetes,feiskyer/kubernetes,tomzhang/kubernetes,li-ang/kubernetes,ingvagabund/kubernetes,joelsmith/kubernetes,roberthbailey/kubernetes,tomzhang/kubernetes,wongma7/kubernetes,zhangmingld/kubernetes,tomzhang/kubernetes,nak3/kubernetes,mikedanese/kubernetes,saad-ali/kubernetes,zhangmingld/kubernetes,aledbf/kubernetes,Acidburn0zzz/kubernetes,joelsmith/kubernetes,fabriziopandini/kubernetes,coolsvap/kubernetes,mYmNeo/kubernetes,cofyc/kubernetes,aledbf/kubernetes,nak3/kubernetes,humblec/kubernetes,dereknex/kubernetes,cofyc/kubernetes,ii/kubernetes,Acidburn0zzz/kubernetes,tengqm/kubernetes,jackfrancis/kubernetes,shyamjvs/kubernetes,roberthbailey/kubernetes,tomzhang/kubernetes,JacobTanenbaum/kubernetes,x13n/kubernetes,jdef/kubernetes,brendandburns/kubernetes,mahak/kubernetes,rrati/kubernetes,ii/kubernetes,monopole/kubernetes,jsafrane/kubernetes,JacobTanenbaum/kubernetes,andrewrynhard/kubernetes,weiwei04/kubernetes,kpgriffith/kubernetes,kitt1987/kubernetes,rnaveiras/kubernetes,dixudx/kubernetes,kpgriffith/kubernetes,mengqiy/kubernetes,linux-on-ibm-z/kubernetes,krmayankk/kubernetes,tomzhang/kubernetes,rnaveiras/kubernetes,ravisantoshgudimetla/kubernetes,rrati/kubernetes,mYmNeo/kubernetes,weiwei04/kubernetes,k82/kubernetes,nikhita/kubernetes,deads2k/kubernetes,PiotrProkop/kubernetes,shyamjvs/kubernetes,csrwng/kubernetes,cofyc/kubernetes,cblecker/kubernetes,jdef/kubernetes,BenTheElder/kubernetes,cblecker/kubernetes,dereknex/kubernetes,mikebrow/kubernetes,shyamjvs/kubernetes,saad-ali/kubernetes,mfojtik/kubernetes,ingvagabund/kubernetes,mkumatag/kubernetes,brendandburns/kubernetes,bparees/kubernetes,MikeSpreitzer/kubernetes,micahhausler/kubernetes,zhangmingld/kubernetes,kitt1987/kubernetes,PiotrProkop/kubernetes,roberthbailey/kubernetes,Clarifai/kubernetes,krmayankk/kubernetes,GulajavaMinistudio/kubernetes,rafax/kubernetes,fanzhangio/kubernetes,mosoft521/kubernetes,jessfraz/kubernetes,mosoft521/kubernetes,nckturner/kubernetes,deads2k/kubernetes,hex108/kubernetes,jagosan/kubernetes,cmluciano/kubernetes,nikhita/kubernetes,carlory/kubernetes,tomzhang/kubernetes,jingxu97/kubernetes,kitt1987/kubernetes,enj/kubernetes,yujuhong/kubernetes,weiwei04/kubernetes,Clarifai/kubernetes,hex108/kubernetes,cmluciano/kubernetes,feiskyer/kubernetes,warmchang/kubernetes,mYmNeo/kubernetes,tengqm/kubernetes,thockin/kubernetes,ravisantoshgudimetla/kubernetes,dims/kubernetes,monopole/kubernetes,PiotrProkop/kubernetes,tpepper/kubernetes,x13n/kubernetes,aledbf/kubernetes,mikebrow/kubernetes,jagosan/kubernetes,verb/kubernetes,kubernetes/kubernetes,rrati/kubernetes,mengqiy/kubernetes,fgimenez/kubernetes,xychu/kubernetes,zhangmingld/kubernetes,cofyc/kubernetes,linux-on-ibm-z/kubernetes,deads2k/kubernetes,nikhita/kubernetes,fabriziopandini/kubernetes,stevesloka/kubernetes,liggitt/kubernetes,mikedanese/kubernetes,jessfraz/kubernetes,gnufied/kubernetes,pires/kubernetes,micahhausler/kubernetes,zhangmingld/kubernetes,stevesloka/kubernetes,dlorenc/kubernetes,verult/kubernetes,li-ang/kubernetes,andrewrynhard/kubernetes,x13n/kubernetes,x13n/kubernetes,nikhita/kubernetes,cmluciano/kubernetes,thockin/kubernetes,soltysh/kubernetes,iameli/kubernetes,ravilr/kubernetes,alejandroEsc/kubernetes,yujuhong/kubernetes,chestack/kubernetes,mYmNeo/kubernetes,humblec/kubernetes,mYmNeo/kubernetes,mahak/kubernetes,dixudx/kubernetes,bparees/kubernetes,mfojtik/kubernetes,linux-on-ibm-z/kubernetes,nikhita/kubernetes,feiskyer/kubernetes,warmchang/kubernetes,carlory/kubernetes,chestack/kubernetes,weiwei04/kubernetes,mosoft521/kubernetes,dlorenc/kubernetes,verult/kubernetes,openshift/kubernetes,tengqm/kubernetes,aledbf/kubernetes,chrislovecnm/kubernetes,kitt1987/kubernetes,verult/kubernetes,fanzhangio/kubernetes,nckturner/kubernetes,matthyx/kubernetes,rnaveiras/kubernetes,mikebrow/kubernetes,alejandroEsc/kubernetes,jessfraz/kubernetes,dereknex/kubernetes,jsafrane/kubernetes,li-ang/kubernetes,jsafrane/kubernetes,dixudx/kubernetes,mosoft521/kubernetes,matthyx/kubernetes,Clarifai/kubernetes,tomzhang/kubernetes,ping035627/kubernetes,ii/kubernetes,ravilr/kubernetes,Acidburn0zzz/kubernetes,stevesloka/kubernetes,tpepper/kubernetes,cblecker/kubernetes,idvoretskyi/kubernetes,nckturner/kubernetes,fanzhangio/kubernetes,wongma7/kubernetes,k82cn/kubernetes,mYmNeo/kubernetes,ingvagabund/kubernetes,MikeSpreitzer/kubernetes,lojies/kubernetes,soltysh/kubernetes,dims/kubernetes,jagosan/kubernetes,dixudx/kubernetes,weiwei04/kubernetes,andrewrynhard/kubernetes,rafax/kubernetes,verult/kubernetes,thockin/kubernetes,k82cn/kubernetes,tomzhang/kubernetes,jdef/kubernetes,spzala/kubernetes,sanjeevm0/kubernetes,mfojtik/kubernetes,k82cn/kubernetes,olivierlemasle/kubernetes,JacobTanenbaum/kubernetes,carlory/kubernetes,iterion/kubernetes,rnaveiras/kubernetes,ping035627/kubernetes,iameli/kubernetes,xlgao-zju/kubernetes,ii/kubernetes,coolsvap/kubernetes,stevesloka/kubernetes,spzala/kubernetes,ravisantoshgudimetla/kubernetes,kubernetes/kubernetes,shyamjvs/kubernetes,sanjeevm0/kubernetes,humblec/kubernetes,x13n/kubernetes,dims/kubernetes,zhouhaibing089/kubernetes,sanjeevm0/kubernetes,hex108/kubernetes,rafax/kubernetes,xychu/kubernetes,rrati/kubernetes,sanjeevm0/kubernetes,sanjeevm0/kubernetes,sanjeevm0/kubernetes,mahak/kubernetes,tpepper/kubernetes,zhouhaibing089/kubernetes,mahak/kubernetes,k82/kubernetes,olivierlemasle/kubernetes,kevin-wangzefeng/kubernetes,iterion/kubernetes,idvoretskyi/kubernetes,warmchang/kubernetes,brendandburns/kubernetes,hex108/kubernetes,soltysh/kubernetes,warmchang/kubernetes,mikebrow/kubernetes,chrislovecnm/kubernetes,BenTheElder/kubernetes,idvoretskyi/kubernetes,jsafrane/kubernetes,ravilr/kubernetes,BenTheElder/kubernetes,ping035627/kubernetes,ravilr/kubernetes,sdminonne/kubernetes,mikedanese/kubernetes,Acidburn0zzz/kubernetes,PiotrProkop/kubernetes,cofyc/kubernetes,thockin/kubernetes,pires/kubernetes,mikedanese/kubernetes,spzala/kubernetes,ping035627/kubernetes,li-ang/kubernetes,tpepper/kubernetes,bparees/kubernetes,dlorenc/kubernetes,openshift/kubernetes,rafax/kubernetes,rnaveiras/kubernetes,PI-Victor/kubernetes,linux-on-ibm-z/kubernetes,xychu/kubernetes,saad-ali/kubernetes,saad-ali/kubernetes,fanzhangio/kubernetes,Clarifai/kubernetes,fabriziopandini/kubernetes,openshift/kubernetes,mfojtik/kubernetes,feiskyer/kubernetes,JacobTanenbaum/kubernetes,pires/kubernetes,bparees/kubernetes,olivierlemasle/kubernetes,bparees/kubernetes,ii/kubernetes,kpgriffith/kubernetes,monopole/kubernetes,chrislovecnm/kubernetes,iameli/kubernetes,pires/kubernetes,ingvagabund/kubernetes,chestack/kubernetes,hex108/kubernetes,nak3/kubernetes,openshift/kubernetes,matthyx/kubernetes,jdef/kubernetes,olivierlemasle/kubernetes,xychu/kubernetes,idvoretskyi/kubernetes,dixudx/kubernetes,mkumatag/kubernetes,PI-Victor/kubernetes,lojies/kubernetes,kitt1987/kubernetes,linux-on-ibm-z/kubernetes,fgimenez/kubernetes,cmluciano/kubernetes,kubernetes/kubernetes,GulajavaMinistudio/kubernetes,mengqiy/kubernetes,lojies/kubernetes,kevin-wangzefeng/kubernetes,jackfrancis/kubernetes,cofyc/kubernetes,csrwng/kubernetes,yujuhong/kubernetes,kevin-wangzefeng/kubernetes,spzala/kubernetes,deads2k/kubernetes,cmluciano/kubernetes,krmayankk/kubernetes,jackfrancis/kubernetes,BenTheElder/kubernetes,mkumatag/kubernetes,andrewrynhard/kubernetes,matthyx/kubernetes,kubernetes/kubernetes,roberthbailey/kubernetes,jagosan/kubernetes,k82/kubernetes,cmluciano/kubernetes,yujuhong/kubernetes,liggitt/kubernetes,brendandburns/kubernetes,enj/kubernetes,carlory/kubernetes,ingvagabund/kubernetes,chrislovecnm/kubernetes,rrati/kubernetes,coolsvap/kubernetes,matthyx/kubernetes,dereknex/kubernetes,JacobTanenbaum/kubernetes,csrwng/kubernetes,nckturner/kubernetes,kevin-wangzefeng/kubernetes,jingxu97/kubernetes,mkumatag/kubernetes,xlgao-zju/kubernetes,dlorenc/kubernetes,zhouhaibing089/kubernetes,chestack/kubernetes,PI-Victor/kubernetes,coolsvap/kubernetes,aledbf/kubernetes,verb/kubernetes,yujuhong/kubernetes,enj/kubernetes,dlorenc/kubernetes,gnufied/kubernetes,xlgao-zju/kubernetes,k82cn/kubernetes,mengqiy/kubernetes,tpepper/kubernetes,PI-Victor/kubernetes,xlgao-zju/kubernetes,kitt1987/kubernetes,GulajavaMinistudio/kubernetes,idvoretskyi/kubernetes,weiwei04/kubernetes,mfojtik/kubernetes,yujuhong/kubernetes,csrwng/kubernetes,Clarifai/kubernetes,mosoft521/kubernetes,wongma7/kubernetes,lojies/kubernetes,sdminonne/kubernetes,krmayankk/kubernetes,soltysh/kubernetes,soltysh/kubernetes,iterion/kubernetes,MikeSpreitzer/kubernetes,mfojtik/kubernetes,gnufied/kubernetes,liggitt/kubernetes,fanzhangio/kubernetes,jingxu97/kubernetes,idvoretskyi/kubernetes,roberthbailey/kubernetes,fgimenez/kubernetes,xychu/kubernetes,coolsvap/kubernetes,dereknex/kubernetes,andrewrynhard/kubernetes,jdef/kubernetes,GulajavaMinistudio/kubernetes,shyamjvs/kubernetes,joelsmith/kubernetes,brendandburns/kubernetes,kevin-wangzefeng/kubernetes,liggitt/kubernetes,mkumatag/kubernetes,jagosan/kubernetes,stevesloka/kubernetes,kpgriffith/kubernetes,enj/kubernetes,xlgao-zju/kubernetes,krmayankk/kubernetes,MikeSpreitzer/kubernetes,sdminonne/kubernetes,kpgriffith/kubernetes,chrislovecnm/kubernetes,csrwng/kubernetes,iterion/kubernetes,dims/kubernetes,k82/kubernetes,stevesloka/kubernetes,Acidburn0zzz/kubernetes,li-ang/kubernetes,joelsmith/kubernetes,micahhausler/kubernetes,verb/kubernetes,saad-ali/kubernetes,xlgao-zju/kubernetes,humblec/kubernetes,andrewrynhard/kubernetes,PI-Victor/kubernetes,wongma7/kubernetes,k82/kubernetes,iterion/kubernetes,sdminonne/kubernetes,jackfrancis/kubernetes,deads2k/kubernetes,ravilr/kubernetes,ingvagabund/kubernetes,fabriziopandini/kubernetes,pires/kubernetes,dlorenc/kubernetes,mahak/kubernetes,spzala/kubernetes,jsafrane/kubernetes,carlory/kubernetes,jessfraz/kubernetes,warmchang/kubernetes,iterion/kubernetes,PI-Victor/kubernetes,cblecker/kubernetes,monopole/kubernetes,Clarifai/kubernetes,coolsvap/kubernetes,nckturner/kubernetes,ravisantoshgudimetla/kubernetes,mikedanese/kubernetes,JacobTanenbaum/kubernetes,zhangmingld/kubernetes,jdef/kubernetes,nak3/kubernetes,monopole/kubernetes,jingxu97/kubernetes,hex108/kubernetes,verult/kubernetes,x13n/kubernetes,nak3/kubernetes,jessfraz/kubernetes,iameli/kubernetes,fgimenez/kubernetes