Avoid hard coding Operating System and Architecture in hack/lib/etcd.sh
Avoid hard coding Operating System and Architecture in hack/lib/etcd.sh

Signed-off-by: Davanum Srinivas <36003aec7ba325a16727bc9a176c12d2776a8ce4@gmail.com>

kubernetes/kubernetes,tengqm/kubernetes,li-ang/kubernetes,jessfraz/kubernetes,MikeSpreitzer/kubernetes,shyamjvs/kubernetes,kubernetes/kubernetes,thockin/kubernetes,thockin/kubernetes,zhangmingld/kubernetes,thockin/kubernetes,kevin-wangzefeng/kubernetes,shyamjvs/kubernetes,carlory/kubernetes,ping035627/kubernetes,openshift/kubernetes,jsafrane/kubernetes,openshift/kubernetes,thockin/kubernetes,jessfraz/kubernetes,deads2k/kubernetes,soltysh/kubernetes,liggitt/kubernetes,mkumatag/kubernetes,matthyx/kubernetes,csrwng/kubernetes,MikeSpreitzer/kubernetes,soltysh/kubernetes,kevin-wangzefeng/kubernetes,warmchang/kubernetes,cblecker/kubernetes,warmchang/kubernetes,jackfrancis/kubernetes,mahak/kubernetes,jackfrancis/kubernetes,mengqiy/kubernetes,dims/kubernetes,k82cn/kubernetes,ii/kubernetes,mengqiy/kubernetes,cblecker/kubernetes,carlory/kubernetes,enj/kubernetes,jessfraz/kubernetes,ii/kubernetes,ii/kubernetes,csrwng/kubernetes,jackfrancis/kubernetes,warmchang/kubernetes,mengqiy/kubernetes,matthyx/kubernetes,ping035627/kubernetes,carlory/kubernetes,enj/kubernetes,PiotrProkop/kubernetes,jsafrane/kubernetes,carlory/kubernetes,ravilr/kubernetes,jessfraz/kubernetes,gnufied/kubernetes,dims/kubernetes,matthyx/kubernetes,MikeSpreitzer/kubernetes,deads2k/kubernetes,GulajavaMinistudio/kubernetes,mkumatag/kubernetes,GulajavaMinistudio/kubernetes,feiskyer/kubernetes,lojies/kubernetes,dims/kubernetes,zhangmingld/kubernetes,enj/kubernetes,kevin-wangzefeng/kubernetes,li-ang/kubernetes,iameli/kubernetes,mkumatag/kubernetes,zhangmingld/kubernetes,zhouhaibing089/kubernetes,chestack/kubernetes,deads2k/kubernetes,k82cn/kubernetes,matthyx/kubernetes,kubernetes/kubernetes,mosoft521/kubernetes,olivierlemasle/kubernetes,lojies/kubernetes,mengqiy/kubernetes,ping035627/kubernetes,GulajavaMinistudio/kubernetes,PiotrProkop/kubernetes,kubernetes/kubernetes,mahak/kubernetes,li-ang/kubernetes,zhouhaibing089/kubernetes,BenTheElder/kubernetes,feiskyer/kubernetes,dims/kubernetes,enj/kubernetes,jsafrane/kubernetes,ping035627/kubernetes,deads2k/kubernetes,k82cn/kubernetes,bparees/kubernetes,mahak/kubernetes,lojies/kubernetes,tengqm/kubernetes,csrwng/kubernetes,shyamjvs/kubernetes,BenTheElder/kubernetes,gnufied/kubernetes,zhouhaibing089/kubernetes,olivierlemasle/kubernetes,kevin-wangzefeng/kubernetes,mahak/kubernetes,dixudx/kubernetes,iameli/kubernetes,gnufied/kubernetes,carlory/kubernetes,olivierlemasle/kubernetes,warmchang/kubernetes,warmchang/kubernetes,PiotrProkop/kubernetes,chestack/kubernetes,olivierlemasle/kubernetes,liggitt/kubernetes,jessfraz/kubernetes,mosoft521/kubernetes,ii/kubernetes,feiskyer/kubernetes,tengqm/kubernetes,feiskyer/kubernetes,GulajavaMinistudio/kubernetes,chestack/kubernetes,liggitt/kubernetes,dixudx/kubernetes,k82cn/kubernetes,chestack/kubernetes,k82cn/kubernetes,jackfrancis/kubernetes,openshift/kubernetes,dixudx/kubernetes,cblecker/kubernetes,iameli/kubernetes,bparees/kubernetes,jsafrane/kubernetes,soltysh/kubernetes,gnufied/kubernetes,chestack/kubernetes,deads2k/kubernetes,BenTheElder/kubernetes,mengqiy/kubernetes,thockin/kubernetes,olivierlemasle/kubernetes,tengqm/kubernetes,openshift/kubernetes,zhouhaibing089/kubernetes,lojies/kubernetes,csrwng/kubernetes,ravilr/kubernetes,liggitt/kubernetes,mosoft521/kubernetes,kubernetes/kubernetes,zhouhaibing089/kubernetes,matthyx/kubernetes,BenTheElder/kubernetes,soltysh/kubernetes,mosoft521/kubernetes,kevin-wangzefeng/kubernetes,zhangmingld/kubernetes,shyamjvs/kubernetes,BenTheElder/kubernetes,MikeSpreitzer/kubernetes,enj/kubernetes,bparees/kubernetes,GulajavaMinistudio/kubernetes,soltysh/kubernetes,bparees/kubernetes,liggitt/kubernetes,ii/kubernetes,mkumatag/kubernetes,li-ang/kubernetes,PiotrProkop/kubernetes,dims/kubernetes,MikeSpreitzer/kubernetes,cblecker/kubernetes,mahak/kubernetes,ravilr/kubernetes,gnufied/kubernetes,dixudx/kubernetes,openshift/kubernetes,li-ang/kubernetes,iameli/kubernetes,zhangmingld/kubernetes,jackfrancis/kubernetes,ravilr/kubernetes,PiotrProkop/kubernetes,bparees/kubernetes,csrwng/kubernetes,shyamjvs/kubernetes,ravilr/kubernetes,ping035627/kubernetes,lojies/kubernetes,cblecker/kubernetes,dixudx/kubernetes,zhangmingld/kubernetes,tengqm/kubernetes,feiskyer/kubernetes,iameli/kubernetes,mkumatag/kubernetes,jsafrane/kubernetes,mosoft521/kubernetes