cleanup: fix error message typos
cleanup: fix error message typos

Signed-off-by: Guangming Wang <2dca52765acf93a024077590b100d00c3300ed67@daocloud.io>
aledbf/kops,kubernetes/kops,robinpercy/kops,robinpercy/kops,justinsb/kops,robinpercy/kops,robinpercy/kops,justinsb/kops,aledbf/kops,kubernetes/kops,aledbf/kops,kubernetes/kops,justinsb/kops,aledbf/kops