HDFS-11278. Add missing @Test annotation for TestSafeMode.testSafeModeUtils() (Contributed by Lukas Majercak via Daniel Templeton)

(cherry picked from commit ce3613c9656e57efdc73edd1787bd9622d1b716e)
(cherry picked from commit af266c8c85971da18c2675c5aa638907b5016fc5)
diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestSafeMode.java b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestSafeMode.java
index e1b958e..d5d576d 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestSafeMode.java
+++ b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestSafeMode.java
@@ -482,6 +482,7 @@
    * Tests some utility methods that surround the SafeMode's state.
    * @throws IOException when there's an issue connecting to the test DFS.
    */
+  @Test
   public void testSafeModeUtils() throws IOException {
     dfs = cluster.getFileSystem();