-fixed bug #2722980\n servicenode failed to run

git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/trunk@3055 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd

xCAT/postscripts/servicenode

@@ -27,7 +27,6 @@ use lib "$::XCATROOT/lib/perl";
 use strict;
 use IO::Socket;
 use IO::Socket::SSL;
-use xCAT::Utils;
 
 # MAIN
 
@@ -327,6 +326,7 @@ sub openlistener
 {
 	my $node = $ENV{'NODE'};
 
+    require xCAT::Utils;
 	# fork a child process to open a socket to listen for communication 
 	#	from the server
 	my $pid = xCAT::Utils->xfork;