Fix helper for defaultbackend name
Fix helper for defaultbackend name

Signed-off-by: nicklasfrahm <4ccf4e294c054d52b66fc4bf8f945bdb59ad75bc@gmail.com>

aledbf/ingress-nginx,kubernetes/ingress-nginx,kubernetes/ingress-nginx,aledbf/ingress-nginx,aledbf/ingress-nginx,aledbf/ingress-nginx,canhnt/ingress,canhnt/ingress,kubernetes/ingress-nginx,canhnt/ingress,caicloud/ingress,caicloud/ingress,caicloud/ingress,kubernetes/ingress-nginx,kubernetes/ingress-nginx,caicloud/ingress,canhnt/ingress