[gnome-software] trivial: Do not warn when using unknown AppData tags

[Richard Hughes <rhughes src gnome org>]

commit 7f440100f8c6249f87d0e67bf3e9b451273fb87b
Author: Richard Hughes <richard hughsie com>
Date:   Mon Nov 25 09:23:18 2013 +0000

    trivial: Do not warn when using unknown AppData tags
    
    It's XML afterall...

 src/plugins/gs-plugin-appdata.c |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)
---
diff --git a/src/plugins/gs-plugin-appdata.c b/src/plugins/gs-plugin-appdata.c
index fe9260d..d844562 100644
--- a/src/plugins/gs-plugin-appdata.c
+++ b/src/plugins/gs-plugin-appdata.c
@@ -291,8 +291,10 @@ appdata_parse_text_cb (GMarkupParseContext *context,
                tmp = appstream_xml_unmunge (text, text_len);
                if (tmp == NULL)
                        break;
-               g_warning ("AppData: unknown data '%s' is '%s'",
-                          appstream_tag_to_string (helper->tag), tmp);
+               if (helper->tag != APPSTREAM_TAG_UNKNOWN) {
+                       g_warning ("AppData: unknown data '%s' is '%s'",
+                                  appstream_tag_to_string (helper->tag), tmp);
+               }
                break;
        }
        g_free (tmp);