add fanout support

git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/branches/2.8@15304 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd

xCAT-client/bin/updatenode

@@ -95,6 +95,7 @@ if (
                 'P|scripts:s'      => \$::RERUNPS,
                 'k|security'       => \$::SECURITY,
                 'o|os:s'      	   => \$::OS,
+                'fanout=i'         => \$::fanout,
     )
   ) {
     &updatenode_usage();