fix boolean to is from get

relates to #2657

Author: kimchy

src/main/java/org/elasticsearch/action/admin/cluster/health/ClusterHealthRequest.java

@@ -134,7 +134,7 @@ public ClusterHealthRequest setLocal(boolean local) {
         return this;
     }
 
-    public boolean getLocal() {
+    public boolean isLocal() {
         return this.local;
     }
 

src/main/java/org/elasticsearch/rest/action/admin/cluster/health/RestClusterHealthAction.java

@@ -51,7 +51,7 @@ public RestClusterHealthAction(Settings settings, Client client, RestController
     @Override
     public void handleRequest(final RestRequest request, final RestChannel channel) {
         ClusterHealthRequest clusterHealthRequest = clusterHealthRequest(RestActions.splitIndices(request.param("index")));
-        clusterHealthRequest.setLocal(request.paramAsBoolean("local", clusterHealthRequest.getLocal()));
+        clusterHealthRequest.setLocal(request.paramAsBoolean("local", clusterHealthRequest.isLocal()));
         clusterHealthRequest.setListenerThreaded(false);
         int level = 0;
         try {