[gnome-software] trivial: print the error when no groups are found

[Richard Hughes <rhughes src gnome org>]

commit 5d70c3d263fd9049be699251e8926b14091ab245
Author: Richard Hughes <richard hughsie com>
Date:   Mon Sep 9 09:11:03 2013 +0100

    trivial: print the error when no groups are found

 src/gs-self-test.c |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)
---
diff --git a/src/gs-self-test.c b/src/gs-self-test.c
index a171110..4d5b9cd 100644
--- a/src/gs-self-test.c
+++ b/src/gs-self-test.c
@@ -265,9 +265,10 @@ gs_plugin_loader_empty_func (void)
                                                                   NULL,
                                                                   &error);
                        if (apps == NULL) {
-                               g_debug ("NOAPPS:\t%s/%s",
+                               g_debug ("NOAPPS:\t%s/%s: %s",
                                         gs_category_get_id (category),
-                                        gs_category_get_id (sub));
+                                        gs_category_get_id (sub),
+                                        error->message);
                                g_clear_error (&error);
                                empty_subcats_cnt++;
                                //g_warning ("MOO");