[gnome-shell] Make unknown seat-id from gdm-user-manager debug instead of warning

[Colin Walters <walters src gnome org>]

commit 0ea01b31afeee963e7c09f25aa8fd82cb2608b4f
Author: Colin Walters <walters verbum org>
Date:   Mon Jun 1 13:46:39 2009 -0400

    Make unknown seat-id from gdm-user-manager debug instead of warning
    
    This makes running with G_DEBUG=fatal-warnings usable from an
    ssh connection on systems which don't record ConsoleKit logins
    for ssh sessions.
---
 src/gdmuser/gdm-user-manager.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/src/gdmuser/gdm-user-manager.c b/src/gdmuser/gdm-user-manager.c
index 411cf94..bde7fcc 100644
--- a/src/gdmuser/gdm-user-manager.c
+++ b/src/gdmuser/gdm-user-manager.c
@@ -1219,7 +1219,7 @@ reload_ck_history (GdmUserManager *manager)
         }
 
         if (seat_id == NULL) {
-                g_warning ("Unable to find users: no seat-id found");
+                g_debug ("Unable to find users: no seat-id found");
                 return;
         }