TT#22420 fix kamailio xmlrpc return code

scalar returns an arrayref with an item for every request,
which we then didn't unpack. better to request an array here

Change-Id: I80717c9e957ad44ad5d75db36735180123ab931c

lib/NGCP/Panel/Utils/Kamailio.pm

@@ -91,7 +91,7 @@ sub trusted_reload {
     my ($c) = @_;
 
     my $dispatcher = NGCP::Panel::Utils::XMLDispatcher->new;
-    my $ret = $dispatcher->dispatch($c, "proxy-ng", 1, 1, <<EOF );
+    my ($ret) = $dispatcher->dispatch($c, "proxy-ng", 1, 1, <<EOF );
 <?xml version="1.0" ?>
 <methodCall>
 <methodName>permissions.trustedReload</methodName>