[gobject-introspection] fix invoke tests

[Johan Dahlin <johan src gnome org>]

commit 27c66d0e1320f54aada9766ace988729c7183056
Author: Saleem Abdulrasool <compnerd compnerd org>
Date:   Sun Dec 13 11:56:45 2009 -0800

    fix invoke tests
    
    retval should be a valid pointer
    
    https://bugzilla.gnome.org/show_bug.cgi?id=604472

 tests/invoke/invoke.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/tests/invoke/invoke.c b/tests/invoke/invoke.c
index dc64253..9d915cd 100644
--- a/tests/invoke/invoke.c
+++ b/tests/invoke/invoke.c
@@ -111,7 +111,7 @@ main (int argc, char *argv[])
   function = (GIFunctionInfo *)info;
 
   in_args[0].v_pointer = "hello world\n";
-  if (!g_function_info_invoke (function, in_args, 1, NULL, 0, NULL, &error))
+  if (!g_function_info_invoke (function, in_args, 1, NULL, 0, &retval, &error))
     g_print ("Invokation of %s failed: %s\n",
 	     g_base_info_get_name (info),
 	     error->message);
@@ -128,7 +128,7 @@ main (int argc, char *argv[])
   len = 0;
   out_args[0].v_pointer = &blurb;
   out_args[1].v_pointer = &len;
-  if (!g_function_info_invoke (function, NULL, 0, out_args, 2, NULL, &error))
+  if (!g_function_info_invoke (function, NULL, 0, out_args, 2, &retval, &error))
     g_print ("Invokation of %s failed: %s\n",
 	     g_base_info_get_name (info),
 	     error->message);