HBASE-10495 upgrade script is printing usage two times with help option.(Rajesh)

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1567493 13f79535-47bb-0310-9956-ffa450edef68

hbase-server/src/main/java/org/apache/hadoop/hbase/migration/UpgradeTo96.java

@@ -84,7 +84,6 @@ public class UpgradeTo96 extends Configured implements Tool {
     CommandLineParser parser = new GnuParser();
     CommandLine cmd = parser.parse(options, args);
     if (cmd.hasOption("h")) {
-      printUsage();
       return false;
     }
     if (cmd.hasOption("execute")) upgrade = true;