-Fix perl syntax error in Client.pm called out with perl -Wc

git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/trunk@1044 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd

perl-xCAT-2.0/xCAT/Client.pm

@@ -141,7 +141,7 @@ sub submit_request {
         die "Connection failure: $@"
      }
   }
-  my $msg=XMLout($request,RootName=>xcatrequest,NoAttr=>1,KeyAttr=>[]);
+  my $msg=XMLout($request,RootName=>'xcatrequest',NoAttr=>1,KeyAttr=>[]);
   print $client $msg;
   my $response;
   my $rsp;