HDFS-6832. Fix the usage of 'hdfs namenode' command. Contributed by Manjunath Ballur.

hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt

@@ -2782,6 +2782,9 @@ Release 2.8.0 - UNRELEASED
 
     HDFS-9799. Reimplement getCurrentTrashDir to remove incompatibility. (zhz)
 
+    HDFS-6832. Fix the usage of 'hdfs namenode' command.
+    (Manjunath Ballur via aajisaka)
+
 Release 2.7.3 - UNRELEASED
 
   INCOMPATIBLE CHANGES

hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/NameNode.java

@@ -282,8 +282,7 @@ public static enum OperationCategory {
       + StartupOption.BOOTSTRAPSTANDBY.getName() + "] | \n\t["
       + StartupOption.RECOVER.getName() + " [ "
       + StartupOption.FORCE.getName() + "] ] | \n\t["
-      + StartupOption.METADATAVERSION.getName() + " ] "
-      + " ]";
+      + StartupOption.METADATAVERSION.getName() + " ]";
 
   
   public long getProtocolVersion(String protocol,