lease: test minLeaseTTL limit
lease: test minLeaseTTL limit

Test whether lease's ttl is set to minLeaseTTL when passing a ttl
smaller than minLeaseTTL to Grant function.

glevand/coreos--etcd,mqliang/etcd,mkumatag/etcd,glevand/coreos--etcd,visheshnp/etcd,a-robinson/etcd,bluebreezecf/etcd,gyuho/etcd,heyitsanthony/etcd,akauppi/etcd,sebrandon1/etcd,YuleiXiao/etcd,rnaveiras/etcd,coreos/etcd,mkumatag/etcd,etcd-io/etcd,lorneli/etcd,bdarnell/etcd,joshix/etcd,sebrandon1/etcd,vimalk78/etcd,mqliang/etcd,coreos/etcd,ajityagaty/etcd,heyitsanthony/etcd,cockroachdb/etcd,fanminshi/etcd,bdarnell/etcd,li-ang/etcd,akauppi/etcd,joshix/etcd,sinsharat/etcd,rnaveiras/etcd,mkumatag/etcd,whuwxl/etcd,mickep76/etcd,xiang90/etcd,dannysauer/etcd,ajityagaty/etcd,li-ang/etcd,fanminshi/etcd,visheshnp/etcd,ajityagaty/etcd,bluebreezecf/etcd,vimalk78/etcd,mqliang/etcd,whuwxl/etcd,lorneli/etcd,a-robinson/etcd,etcd-io/etcd,dannysauer/etcd,YuleiXiao/etcd,sinsharat/etcd,xiang90/etcd,mickep76/etcd,etcd-io/etcd,gyuho/etcd,cockroachdb/etcd,rnaveiras/etcd