[glib/gsettings] fixup last commit

[Ryan Lortie <ryanl src gnome org>]

commit 3cd429cf225a7ee426e4b689338d0329dd429210
Author: Ryan Lortie <desrt desrt ca>
Date:   Fri Aug 28 00:06:22 2009 -0400

    fixup last commit

 glib/gvariant-core.c |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/glib/gvariant-core.c b/glib/gvariant-core.c
index 8ce1f1a..5f39d79 100644
--- a/glib/gvariant-core.c
+++ b/glib/gvariant-core.c
@@ -1096,7 +1096,7 @@ void
 g_variant_store (GVariant *value,
                  gpointer  data)
 {
-  g_return_val_if_fail (value != NULL, NULL);
+  g_return_if_fail (value != NULL);
 
   g_variant_assert_invariant (value);
 
@@ -1225,7 +1225,7 @@ g_variant_get_fixed_array (GVariant *value,
 void
 g_variant_unref (GVariant *value)
 {
-  g_return_val_if_fail (value != NULL, NULL);
+  g_return_if_fail (value != NULL);
 
   g_variant_assert_invariant (value);
 
@@ -1324,7 +1324,7 @@ g_variant_from_slice (const GVariantType *type,
 {
   GVariant *new;
 
-  g_return_val_if_fail (data != NULL || size == 0, NULL);
+  g_return_val_if_fail (slice != NULL || size == 0, NULL);
 
   if (type == NULL)
     {