Converts docs/ from --flag_name= to --flag-name=

docs/getting-started-guides/coreos/azure/cloud_config_templates/kubernetes-cluster-main-nodes-template.yml

@@ -288,11 +288,11 @@ coreos:
         ExecStart=/opt/kubernetes/server/bin/kubelet \
             --address=0.0.0.0 \
             --port=10250 \
-            --hostname_override=%H \
-            --api_servers=http://kube-00:8080 \
+            --hostname-override=%H \
+            --api-servers=http://kube-00:8080 \
             --logtostderr=true \
-            --cluster_dns=10.1.0.3 \
-            --cluster_domain=kube.local \
+            --cluster-dns=10.1.0.3 \
+            --cluster-domain=kube.local \
             --config=/etc/kubernetes/manifests/
         Restart=always
         RestartSec=10

docs/getting-started-guides/coreos/azure/lib/deployment_logic/kubernetes.js

@@ -38,7 +38,7 @@ etcd_initial_cluster_conf_kube = function (conf) {
     'name': 'kube-apiserver.service',
     'drop-ins': [{
       'name': '50-etcd-initial-cluster.conf',
-      'content': _.template("[Service]\nEnvironment=ETCD_SERVERS=--etcd_servers=<%= nodes.join(',') %>\n")(data),
+      'content': _.template("[Service]\nEnvironment=ETCD_SERVERS=--etcd-servers=<%= nodes.join(',') %>\n")(data),
     }],
   };
 };