[gnome-flashback] polkit: remove warning about missing user icon

[Alberts Muktupāvels <muktupavels src gnome org>]

commit 172b4f291a860081ecaeaa10e9eea524b63366f5
Author: Alberts Muktupāvels <alberts muktupavels gmail com>
Date:   Wed Jun 21 14:48:17 2017 +0300

    polkit: remove warning about missing user icon

 .../libpolkit/flashback-polkit-dialog.c            |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)
---
diff --git a/gnome-flashback/libpolkit/flashback-polkit-dialog.c 
b/gnome-flashback/libpolkit/flashback-polkit-dialog.c
index 56ce5d8..5b430f6 100644
--- a/gnome-flashback/libpolkit/flashback-polkit-dialog.c
+++ b/gnome-flashback/libpolkit/flashback-polkit-dialog.c
@@ -350,7 +350,10 @@ get_user_icon (char *username)
       pixbuf = gdk_pixbuf_new_from_file_at_size (icon_filename, 16, 16, &error);
       if (pixbuf == NULL)
         {
-          g_warning ("Couldn't open user icon: %s", error->message);
+          if (!g_error_matches (error, G_FILE_ERROR, G_FILE_ERROR_NOENT))
+            g_warning ("Couldn't open user icon: %s", error->message);
+          else
+            g_debug ("Couldn't open user icon: %s", error->message);
           g_error_free (error);
         }
     }