[gnome-color-manager] Do not show blank metadata in the profile viewer

[Richard Hughes <rhughes src gnome org>]

commit 7d25d0f1297cc0f47b73b4d15a73063fc391e3bd
Author: Richard Hughes <richard hughsie com>
Date:   Mon Jan 9 16:34:38 2012 +0000

    Do not show blank metadata in the profile viewer

 src/gcm-viewer.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/src/gcm-viewer.c b/src/gcm-viewer.c
index 62e85d9..ec778c0 100644
--- a/src/gcm-viewer.c
+++ b/src/gcm-viewer.c
@@ -855,6 +855,8 @@ gcm_viewer_add_metadata (GcmViewerPrivate *viewer,
 			continue;
 		key = gcm_viewer_get_localised_metadata_key ((gchar *) l->data);
 		value = g_hash_table_lookup (metadata, l->data);
+		if (value == NULL || value[0] == '\0')
+			continue;
 		g_debug ("Adding '%s', '%s'",
 			 key, value);
 		gtk_list_store_append (viewer->liststore_metadata, &iter);