Fix golint warning for pkg/util/procfs/procfs_linux.go
Fix golint warning for pkg/util/procfs/procfs_linux.go

Signed-off-by: Guangwen Feng <98e12d19818083ae8a98303786e6a151211377ea@cn.fujitsu.com>

MHBauer/kubernetes,ping035627/kubernetes,monopole/kubernetes,shyamjvs/kubernetes,tpepper/kubernetes,zhangmingld/kubernetes,luxas/kubernetes,zhangmingld/kubernetes,dlorenc/kubernetes,Lion-Wei/kubernetes,jessfraz/kubernetes,pmorie/kubernetes,huangjiuyuan/kubernetes,cofyc/kubernetes,tpepper/kubernetes,cmluciano/kubernetes,cofyc/kubernetes,cofyc/kubernetes,andrewsykim/kubernetes,saad-ali/kubernetes,hex108/kubernetes,xychu/kubernetes,Acidburn0zzz/kubernetes,aledbf/kubernetes,nak3/kubernetes,BenTheElder/kubernetes,iameli/kubernetes,tcnghia/kubernetes,chrislovecnm/kubernetes,hex108/kubernetes,andrewrynhard/kubernetes,ii/kubernetes,tengqm/kubernetes,ravilr/kubernetes,GulajavaMinistudio/kubernetes,tpepper/kubernetes,shyamjvs/kubernetes,erwinvaneyk/kubernetes,k82cn/kubernetes,chestack/kubernetes,wongma7/kubernetes,pmorie/kubernetes,yujuhong/kubernetes,johscheuer/kubernetes,mahak/kubernetes,rafax/kubernetes,Acidburn0zzz/kubernetes,luxas/kubernetes,johscheuer/kubernetes,jdef/kubernetes,cofyc/kubernetes,sanjeevm0/kubernetes,ixdy/kubernetes,MHBauer/kubernetes,tallclair/kubernetes,gnufied/kubernetes,jsafrane/kubernetes,sethpollack/kubernetes,nckturner/kubernetes,li-ang/kubernetes,zetaab/kubernetes,Lion-Wei/kubernetes,csrwng/kubernetes,dixudx/kubernetes,JacobTanenbaum/kubernetes,zhouhaibing089/kubernetes,olivierlemasle/kubernetes,jsafrane/kubernetes,nikhita/kubernetes,csrwng/kubernetes,ii/kubernetes,bparees/kubernetes,mkumatag/kubernetes,stevesloka/kubernetes,maciaszczykm/kubernetes,jagosan/kubernetes,du2016/kubernetes,ingvagabund/kubernetes,davidz627/kubernetes,mYmNeo/kubernetes,ii/kubernetes,zetaab/kubernetes,davidz627/kubernetes,zetaab/kubernetes,ravisantoshgudimetla/kubernetes,mengqiy/kubernetes,mahak/kubernetes,thockin/kubernetes,fanzhangio/kubernetes,MHBauer/kubernetes,spzala/kubernetes,chrislovecnm/kubernetes,mkumatag/kubernetes,matthyx/kubernetes,PiotrProkop/kubernetes,MikeSpreitzer/kubernetes,tomerf/kubernetes,gnufied/kubernetes,pwittrock/kubernetes,warmchang/kubernetes,kpgriffith/kubernetes,feiskyer/kubernetes,PI-Victor/kubernetes,tomerf/kubernetes,carlory/kubernetes,lojies/kubernetes,nikhita/kubernetes,li-ang/kubernetes,brendandburns/kubernetes,andrewsykim/kubernetes,openshift/kubernetes,dims/kubernetes,jessfraz/kubernetes,ravilr/kubernetes,mikedanese/kubernetes,u2takey/kubernetes,li-ang/kubernetes,mYmNeo/kubernetes,ravisantoshgudimetla/kubernetes,chestack/kubernetes,li-ang/kubernetes,kpgriffith/kubernetes,davidz627/kubernetes,kitt1987/kubernetes,verult/kubernetes,x13n/kubernetes,cofyc/kubernetes,mboersma/kubernetes,tomerf/kubernetes,davidz627/kubernetes,kevin-wangzefeng/kubernetes,iameli/kubernetes,ravilr/kubernetes,tomzhang/kubernetes,sdminonne/kubernetes,dlorenc/kubernetes,linux-on-ibm-z/kubernetes,coolsvap/kubernetes,gnufied/kubernetes,nckturner/kubernetes,xychu/kubernetes,carlory/kubernetes,deads2k/kubernetes,mboersma/kubernetes,idvoretskyi/kubernetes,dixudx/kubernetes,yarntime/kubernetes,kubernetes/kubernetes,klaus1982/kubernetes,fejta/kubernetes,johscheuer/kubernetes,pmorie/kubernetes,tallclair/kubernetes,andrewsykim/kubernetes,jagosan/kubernetes,monopole/kubernetes,k82/kubernetes,jackfrancis/kubernetes,cmluciano/kubernetes,LalatenduMohanty/kubernetes,mYmNeo/kubernetes,iameli/kubernetes,tcnghia/kubernetes,mfojtik/kubernetes,iterion/kubernetes,bparees/kubernetes,luxas/kubernetes,wanghaoran1988/kubernetes,ravilr/kubernetes,jingxu97/kubernetes,cblecker/kubernetes,PiotrProkop/kubernetes,PI-Victor/kubernetes,u2takey/kubernetes,micahhausler/kubernetes,cblecker/kubernetes,joelsmith/kubernetes,saad-ali/kubernetes,lojies/kubernetes,micahhausler/kubernetes,thockin/kubernetes,rafax/kubernetes,mahak/kubernetes,u2takey/kubernetes,wanghaoran1988/kubernetes,liggitt/kubernetes,tengqm/kubernetes,coolsvap/kubernetes,fgimenez/kubernetes,MHBauer/kubernetes,mengqiy/kubernetes,spzala/kubernetes,weiwei04/kubernetes,mengqiy/kubernetes,Clarifai/kubernetes,jdef/kubernetes,mkumatag/kubernetes,pwittrock/kubernetes,aveshagarwal/kubernetes,mosoft521/kubernetes,PiotrProkop/kubernetes,kpgriffith/kubernetes,zhouhaibing089/kubernetes,saad-ali/kubernetes,tcnghia/kubernetes,olivierlemasle/kubernetes,mkumatag/kubernetes,enj/kubernetes,dixudx/kubernetes,fabriziopandini/kubernetes,kevensen/kubernetes,PiotrProkop/kubernetes,soltysh/kubernetes,verult/kubernetes,kevensen/kubernetes,k82/kubernetes,fejta/kubernetes,saad-ali/kubernetes,ingvagabund/kubernetes,nikhita/kubernetes,JacobTanenbaum/kubernetes,mikedanese/kubernetes,rrati/kubernetes,xlgao-zju/kubernetes,dims/kubernetes,ravisantoshgudimetla/kubernetes,csrwng/kubernetes,pmorie/kubernetes,brendandburns/kubernetes,pweil-/kubernetes,warmchang/kubernetes,k82cn/kubernetes,PiotrProkop/kubernetes,ingvagabund/kubernetes,ping035627/kubernetes,mfojtik/kubernetes,mkumatag/kubernetes,iterion/kubernetes,openshift/kubernetes,Clarifai/kubernetes,chrislovecnm/kubernetes,cmluciano/kubernetes,mikebrow/kubernetes,liggitt/kubernetes,stevesloka/kubernetes,pweil-/kubernetes,enj/kubernetes,cmluciano/kubernetes,krmayankk/kubernetes,MHBauer/kubernetes,spzala/kubernetes,warmchang/kubernetes,jagosan/kubernetes,saad-ali/kubernetes,iterion/kubernetes,kevensen/kubernetes,weiwei04/kubernetes,jackfrancis/kubernetes,JacobTanenbaum/kubernetes,pwittrock/kubernetes,x13n/kubernetes,Clarifai/kubernetes,andrewsykim/kubernetes,jsafrane/kubernetes,dereknex/kubernetes,tallclair/kubernetes,roberthbailey/kubernetes,dixudx/kubernetes,tomzhang/kubernetes,xlgao-zju/kubernetes,fgimenez/kubernetes,huangjiuyuan/kubernetes,nak3/kubernetes,rrati/kubernetes,coolsvap/kubernetes,dereknex/kubernetes,kitt1987/kubernetes,humblec/kubernetes,zhangmingld/kubernetes,k82/kubernetes,brendandburns/kubernetes,kevin-wangzefeng/kubernetes,linux-on-ibm-z/kubernetes,andrewrynhard/kubernetes,jackfrancis/kubernetes,shyamjvs/kubernetes,dims/kubernetes,monopole/kubernetes,micahhausler/kubernetes,jdef/kubernetes,dlorenc/kubernetes,nak3/kubernetes,Clarifai/kubernetes,jfrazelle/kubernetes,wanghaoran1988/kubernetes,idvoretskyi/kubernetes,maciaszczykm/kubernetes,sanjeevm0/kubernetes,du2016/kubernetes,dereknex/kubernetes,mosoft521/kubernetes,enj/kubernetes,mboersma/kubernetes,olivierlemasle/kubernetes,pweil-/kubernetes,yarntime/kubernetes,nak3/kubernetes,pweil-/kubernetes,xlgao-zju/kubernetes,jfrazelle/kubernetes,jessfraz/kubernetes,GulajavaMinistudio/kubernetes,tcnghia/kubernetes,deads2k/kubernetes,roberthbailey/kubernetes,k82cn/kubernetes,PI-Victor/kubernetes,feiskyer/kubernetes,thockin/kubernetes,sdminonne/kubernetes,rnaveiras/kubernetes,soltysh/kubernetes,jfrazelle/kubernetes,k82/kubernetes,tcnghia/kubernetes,krmayankk/kubernetes,Lion-Wei/kubernetes,MikeSpreitzer/kubernetes,yujuhong/kubernetes,yujuhong/kubernetes,maciaszczykm/kubernetes,wongma7/kubernetes,roberthbailey/kubernetes,k82cn/kubernetes,weiwei04/kubernetes,aledbf/kubernetes,pires/kubernetes,sdminonne/kubernetes,mikebrow/kubernetes,dixudx/kubernetes,jsafrane/kubernetes,fanzhangio/kubernetes,kpgriffith/kubernetes,mfojtik/kubernetes,sethpollack/kubernetes,Acidburn0zzz/kubernetes,mosoft521/kubernetes,roberthbailey/kubernetes,fanzhangio/kubernetes,nikhita/kubernetes,mikedanese/kubernetes,pires/kubernetes,cofyc/kubernetes,tallclair/kubernetes,pmorie/kubernetes,Lion-Wei/kubernetes,tomzhang/kubernetes,johscheuer/kubernetes,rafax/kubernetes,klaus1982/kubernetes,ingvagabund/kubernetes,kevin-wangzefeng/kubernetes,huangjiuyuan/kubernetes,yarntime/kubernetes,sethpollack/kubernetes,shyamjvs/kubernetes,cmluciano/kubernetes,fabriziopandini/kubernetes,wongma7/kubernetes,humblec/kubernetes,Clarifai/kubernetes,kitt1987/kubernetes,erwinvaneyk/kubernetes,yujuhong/kubernetes,rnaveiras/kubernetes,jsafrane/kubernetes,lojies/kubernetes,linux-on-ibm-z/kubernetes,saad-ali/kubernetes,iameli/kubernetes,jingxu97/kubernetes,andrewrynhard/kubernetes,sethpollack/kubernetes,sanjeevm0/kubernetes,fejta/kubernetes,dereknex/kubernetes,krmayankk/kubernetes,nak3/kubernetes,chrislovecnm/kubernetes,ravisantoshgudimetla/kubernetes,mfojtik/kubernetes,JacobTanenbaum/kubernetes,carlory/kubernetes,bparees/kubernetes,tcnghia/kubernetes,mboersma/kubernetes,cblecker/kubernetes,Lion-Wei/kubernetes,xlgao-zju/kubernetes,carlory/kubernetes,LalatenduMohanty/kubernetes,kevin-wangzefeng/kubernetes,fanzhangio/kubernetes,warmchang/kubernetes,pwittrock/kubernetes,liggitt/kubernetes,mahak/kubernetes,sethpollack/kubernetes,cblecker/kubernetes,andrewrynhard/kubernetes,thockin/kubernetes,fgimenez/kubernetes,coolsvap/kubernetes,verb/kubernetes,zhangmingld/kubernetes,joelsmith/kubernetes,pweil-/kubernetes,rnaveiras/kubernetes,krmayankk/kubernetes,xlgao-zju/kubernetes,stevesloka/kubernetes,shyamjvs/kubernetes,roberthbailey/kubernetes,wanghaoran1988/kubernetes,ravisantoshgudimetla/kubernetes,PI-Victor/kubernetes,tomzhang/kubernetes,u2takey/kubernetes,aledbf/kubernetes,aveshagarwal/kubernetes,pires/kubernetes,tomzhang/kubernetes,mfojtik/kubernetes,idvoretskyi/kubernetes,MikeSpreitzer/kubernetes,matthyx/kubernetes,x13n/kubernetes,rrati/kubernetes,LalatenduMohanty/kubernetes,yarntime/kubernetes,tallclair/kubernetes,nikhita/kubernetes,mYmNeo/kubernetes,mYmNeo/kubernetes,krmayankk/kubernetes,PI-Victor/kubernetes,alejandroEsc/kubernetes,spzala/kubernetes,huangjiuyuan/kubernetes,dereknex/kubernetes,linux-on-ibm-z/kubernetes,ixdy/kubernetes,andrewrynhard/kubernetes,pires/kubernetes,weiwei04/kubernetes,stevesloka/kubernetes,brendandburns/kubernetes,k82cn/kubernetes,stevesloka/kubernetes,lojies/kubernetes,sanjeevm0/kubernetes,x13n/kubernetes,andrewsykim/kubernetes,mboersma/kubernetes,GulajavaMinistudio/kubernetes,mYmNeo/kubernetes,maciaszczykm/kubernetes,hex108/kubernetes,monopole/kubernetes,olivierlemasle/kubernetes,huangjiuyuan/kubernetes,yujuhong/kubernetes,jingxu97/kubernetes,coolsvap/kubernetes,yujuhong/kubernetes,BenTheElder/kubernetes,feiskyer/kubernetes,joelsmith/kubernetes,davidz627/kubernetes,ping035627/kubernetes,rrati/kubernetes,mikedanese/kubernetes,luxas/kubernetes,Acidburn0zzz/kubernetes,humblec/kubernetes,PI-Victor/kubernetes,li-ang/kubernetes,zhangmingld/kubernetes,tpepper/kubernetes,mikebrow/kubernetes,erwinvaneyk/kubernetes,du2016/kubernetes,fejta/kubernetes,warmchang/kubernetes,kubernetes/kubernetes,mboersma/kubernetes,jackfrancis/kubernetes,alejandroEsc/kubernetes,deads2k/kubernetes,olivierlemasle/kubernetes,mfojtik/kubernetes,verb/kubernetes,mahak/kubernetes,xychu/kubernetes,tomzhang/kubernetes,zetaab/kubernetes,erwinvaneyk/kubernetes,aveshagarwal/kubernetes,wanghaoran1988/kubernetes,fabriziopandini/kubernetes,zetaab/kubernetes,cmluciano/kubernetes,kevin-wangzefeng/kubernetes,dlorenc/kubernetes,bparees/kubernetes,fgimenez/kubernetes,xlgao-zju/kubernetes,kevensen/kubernetes,pires/kubernetes,x13n/kubernetes,erwinvaneyk/kubernetes,fabriziopandini/kubernetes,kpgriffith/kubernetes,ixdy/kubernetes,joelsmith/kubernetes,openshift/kubernetes,xychu/kubernetes,maciaszczykm/kubernetes,jingxu97/kubernetes,kpgriffith/kubernetes,ravisantoshgudimetla/kubernetes,idvoretskyi/kubernetes,ixdy/kubernetes,stevesloka/kubernetes,alejandroEsc/kubernetes,jdef/kubernetes,jackfrancis/kubernetes,kitt1987/kubernetes,hex108/kubernetes,JacobTanenbaum/kubernetes,rrati/kubernetes,ping035627/kubernetes,Acidburn0zzz/kubernetes,aveshagarwal/kubernetes,weiwei04/kubernetes,LalatenduMohanty/kubernetes,matthyx/kubernetes,xychu/kubernetes,rnaveiras/kubernetes,coolsvap/kubernetes,chrislovecnm/kubernetes,tpepper/kubernetes,fejta/kubernetes,pires/kubernetes,hex108/kubernetes,micahhausler/kubernetes,kubernetes/kubernetes,mikebrow/kubernetes,joelsmith/kubernetes,jdef/kubernetes,dims/kubernetes,Lion-Wei/kubernetes,matthyx/kubernetes,brendandburns/kubernetes,mboersma/kubernetes,ingvagabund/kubernetes,linux-on-ibm-z/kubernetes,csrwng/kubernetes,ii/kubernetes,BenTheElder/kubernetes,yarntime/kubernetes,humblec/kubernetes,ii/kubernetes,tomerf/kubernetes,mengqiy/kubernetes,dlorenc/kubernetes,tomerf/kubernetes,mosoft521/kubernetes,bparees/kubernetes,soltysh/kubernetes,soltysh/kubernetes,MHBauer/kubernetes,rafax/kubernetes,verult/kubernetes,zhouhaibing089/kubernetes,nckturner/kubernetes,tomerf/kubernetes,kevensen/kubernetes,huangjiuyuan/kubernetes,spzala/kubernetes,pwittrock/kubernetes,du2016/kubernetes,deads2k/kubernetes,lojies/kubernetes,dereknex/kubernetes,Acidburn0zzz/kubernetes,tomzhang/kubernetes,ixdy/kubernetes,weiwei04/kubernetes,tengqm/kubernetes,klaus1982/kubernetes,mikebrow/kubernetes,ingvagabund/kubernetes,ravilr/kubernetes,idvoretskyi/kubernetes,dlorenc/kubernetes,brendandburns/kubernetes,zhouhaibing089/kubernetes,fgimenez/kubernetes,tengqm/kubernetes,aveshagarwal/kubernetes,carlory/kubernetes,alejandroEsc/kubernetes,joelsmith/kubernetes,verb/kubernetes,GulajavaMinistudio/kubernetes,LalatenduMohanty/kubernetes,MikeSpreitzer/kubernetes,du2016/kubernetes,mboersma/kubernetes,u2takey/kubernetes,liggitt/kubernetes,jagosan/kubernetes,wanghaoran1988/kubernetes,jessfraz/kubernetes,mosoft521/kubernetes,iterion/kubernetes,matthyx/kubernetes,gnufied/kubernetes,hex108/kubernetes,mikedanese/kubernetes,johscheuer/kubernetes,kitt1987/kubernetes,fgimenez/kubernetes,yarntime/kubernetes,chrislovecnm/kubernetes,chestack/kubernetes,nckturner/kubernetes,verult/kubernetes,tomzhang/kubernetes,zhangmingld/kubernetes,luxas/kubernetes,jagosan/kubernetes,nckturner/kubernetes,verb/kubernetes,feiskyer/kubernetes,LalatenduMohanty/kubernetes,u2takey/kubernetes,fejta/kubernetes,chestack/kubernetes,sdminonne/kubernetes,davidz627/kubernetes,pwittrock/kubernetes,iameli/kubernetes,wongma7/kubernetes,verult/kubernetes,JacobTanenbaum/kubernetes,andrewrynhard/kubernetes,idvoretskyi/kubernetes,ping035627/kubernetes,soltysh/kubernetes,sanjeevm0/kubernetes,kubernetes/kubernetes,sanjeevm0/kubernetes,xychu/kubernetes,Clarifai/kubernetes,wongma7/kubernetes,sdminonne/kubernetes,jdef/kubernetes,feiskyer/kubernetes,BenTheElder/kubernetes,andrewsykim/kubernetes,BenTheElder/kubernetes,tengqm/kubernetes,humblec/kubernetes,chestack/kubernetes,mengqiy/kubernetes,enj/kubernetes,tallclair/kubernetes,k82/kubernetes,jingxu97/kubernetes,tomzhang/kubernetes,openshift/kubernetes,jessfraz/kubernetes,erwinvaneyk/kubernetes,johscheuer/kubernetes,micahhausler/kubernetes,MikeSpreitzer/kubernetes,iterion/kubernetes,csrwng/kubernetes,fabriziopandini/kubernetes,klaus1982/kubernetes,nak3/kubernetes,kitt1987/kubernetes,monopole/kubernetes,pmorie/kubernetes,iterion/kubernetes,thockin/kubernetes,aledbf/kubernetes,cblecker/kubernetes,jfrazelle/kubernetes,fanzhangio/kubernetes,gnufied/kubernetes,dims/kubernetes,aveshagarwal/kubernetes,liggitt/kubernetes,fanzhangio/kubernetes,jfrazelle/kubernetes,ixdy/kubernetes,openshift/kubernetes,GulajavaMinistudio/kubernetes,zhouhaibing089/kubernetes,verb/kubernetes,luxas/kubernetes,aledbf/kubernetes,x13n/kubernetes,enj/kubernetes,alejandroEsc/kubernetes,maciaszczykm/kubernetes,kubernetes/kubernetes,krmayankk/kubernetes,zetaab/kubernetes,rnaveiras/kubernetes,pweil-/kubernetes,verult/kubernetes,deads2k/kubernetes,tpepper/kubernetes