CHANGELOG: fix punctuation errors in 1.21
CHANGELOG: fix punctuation errors in 1.21

Signed-off-by: wangyx1992 <346aff8c656bc54e75bd735965cd347f9dcfc6bd@zte.com.cn>

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