Run apt-get update before installing sudo

recent changes to kubekins broke local-e2e with the following error ``` E: Unable to locate package sudo ``` Change-Id: I9ad324a2a070bc068ed1f0f88a912eafb191ad90

Run apt-get update before installing sudo
279e1ed1 · Davanum Srinivas · 2cd88258 · 279e1ed1
Unverified Commit 279e1ed1 authored Jan 24, 2019 by Davanum Srinivas
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local-up-cluster.sh hack/local-up-cluster.sh +1 -1

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--- a/hack/local-up-cluster.sh
+++ b/hack/local-up-cluster.sh
@@ -1038,7 +1038,7 @@ if [[ "${KUBETEST_IN_DOCKER:-}" == "true" ]]; then
  export PATH="${KUBE_ROOT}/third_party/etcd:${PATH}"
  KUBE_FASTBUILD=true make ginkgo cross

-  apt install -y sudo
+  apt-get update && apt-get install -y sudo
  apt-get remove -y systemd

  # configure shared mounts to prevent failure in DIND scenarios