Fix potential use of undefined variable in remote dispatch code

If an early dispatch check caused a jump to the 'cleanup' branch
then virTypeParamsFree() would be called with an uninitialized
'nparams' variable. Fortunately 'params' is initialized to NULL,
so the uninitialized 'nparams' variable would not be used.
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>
(cherry picked from commit 31dbbb66)

src/rpc/gendispatch.pl

@@ -495,7 +495,7 @@ elsif ($mode eq "server") {
                     push(@args_list, "args->$1.$1_len");
                 } elsif ($args_member =~ m/^remote_typed_param (\S+)<(\S+)>;/) {
                     push(@vars_list, "virTypedParameterPtr $1 = NULL");
-                    push(@vars_list, "int n$1");
+                    push(@vars_list, "int n$1 = 0;");
                     if ($call->{ProcName} eq "NodeSetMemoryParameters") {
                         push(@args_list, "priv->conn");
                     }