Automatic merge from submit-queue

make kubeadm version use kubeadmutil

What this PR does / why we need it:

this PR makes sure `kubeadmutil.CheckErr()` other than `cmdutil.CheckErr()` is called in `kubeadm version` subcommand. 
in `version.go`, `RunVersion()` function only returns `nil`, `kubeadmutil.CheckErr()` is enough for this
Signed-off-by: redhatlinux10 <ouyang.qinhua@zte.com.cn>