HBASE-23361 Limit two decimals in total average load (#897)

Signed-off-by: GuangxuCheng  <guangxucheng@gmail.com>
Signed-off-by: Xu Cang <xucang@apache.org>

Author: Karthik Palanisamy

hbase-server/src/main/jamon/org/apache/hadoop/hbase/tmpl/master/RSGroupListTmpl.jamon

@@ -151,7 +151,7 @@ if (master.getServerManager() != null) {
 <td><% totalTables %></td>
 <td><% totalRequests %></td>
 <td><% totalRegions %></td>
-<td><% master.getServerManager().getAverageLoad() %></td>
+<td><% StringUtils.limitDecimalTo2(master.getServerManager().getAverageLoad()) %></td>
 </tr>
 </table>
 </%def>
@@ -390,4 +390,4 @@ if (master.getServerManager() != null) {
     String rsGroupName;
     </%args>
     <a href=rsgroup.jsp?name=<% rsGroupName %>><% rsGroupName %></a>
-</%def>
+</%def>