[gimp] libgimpconfig: relax precondition check in gimp_config_type_register()

[Ell <ell src gnome org>]

commit 3d30a036de06049693be7f90d73c4d716df9f9a4
Author: Ell <ell_se yahoo com>
Date:   Mon Sep 23 18:22:19 2019 +0300

    libgimpconfig: relax precondition check in gimp_config_type_register()
    
    Allow passing a non-NULL `pspecs` with `n_pspecs == 0` to
    gimp_config_type_register(), in particular since
    g_object_class_list_properties() may return such values.

 libgimpconfig/gimpconfig-register.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)
---
diff --git a/libgimpconfig/gimpconfig-register.c b/libgimpconfig/gimpconfig-register.c
index d621f726e2..d70e80fe8c 100644
--- a/libgimpconfig/gimpconfig-register.c
+++ b/libgimpconfig/gimpconfig-register.c
@@ -83,8 +83,7 @@ gimp_config_type_register (GType         parent_type,
 
   g_return_val_if_fail (g_type_is_a (parent_type, G_TYPE_OBJECT), G_TYPE_NONE);
   g_return_val_if_fail (type_name != NULL, G_TYPE_NONE);
-  g_return_val_if_fail ((pspecs == NULL && n_pspecs == 0) ||
-                        (pspecs != NULL && n_pspecs > 0), G_TYPE_NONE);
+  g_return_val_if_fail (pspecs != NULL || n_pspecs == 0, G_TYPE_NONE);
 
   terminated_pspecs = g_new0 (GParamSpec *, n_pspecs + 1);