fix https://github.com/acmesh-official/acme.sh/issues/4009
@ -3758,7 +3758,7 @@ updateaccount() {
_email="$(_getAccountEmail)"
if [ "$ACCOUNT_EMAIL" ]; then
if [ "$_email" ]; then
updjson='{"contact": ["mailto:'$_email'"]}'
else
updjson='{"contact": []}'