Fixed a variable initialization to get rid of the following message:

Use of uninitialized value in scalar assignment at /usr/sbin/xcatd line 624.


git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/trunk@5220 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd

xCAT-server/sbin/xcatd

@@ -621,7 +621,7 @@ until ($quit) {
   }
 
   if ($child == 0) {
-    $SIG{TERM} = $SIG{INT} = ();
+    $SIG{TERM} = $SIG{INT} = {};
     $SIG{CHLD} = \&generic_reaper; #THROTTLE
     $listener->close;