YARN-6884. AllocationFileLoaderService.loadQueue() has an if without braces

(Contributed by weiyuan via Daniel Templeton)

(cherry picked from commit c7680d4cc4d9302a5b5efcf2467bd32ecea99585)

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/AllocationFileLoaderService.java

@@ -295,8 +295,9 @@ public class AllocationFileLoaderService extends AbstractService {
           NodeList fields = element.getChildNodes();
           for (int j = 0; j < fields.getLength(); j++) {
             Node fieldNode = fields.item(j);
-            if (!(fieldNode instanceof Element))
+            if (!(fieldNode instanceof Element)) {
               continue;
+            }
             Element field = (Element) fieldNode;
             if ("maxRunningApps".equals(field.getTagName())) {
               String text = ((Text)field.getFirstChild()).getData().trim();
@@ -491,8 +492,9 @@ public class AllocationFileLoaderService extends AbstractService {
 
     for (int j = 0; j < fields.getLength(); j++) {
       Node fieldNode = fields.item(j);
-      if (!(fieldNode instanceof Element))
+      if (!(fieldNode instanceof Element)) {
         continue;
+      }
       Element field = (Element) fieldNode;
       if ("minResources".equals(field.getTagName())) {
         String text = ((Text)field.getFirstChild()).getData().trim();