[gdm] daemon: Move root check before settings are loaded

[Robert Ancell <rancell src gnome org>]

commit 547345e00c6916dc6b2001e4b726812c80eb3c8d
Author: Robert Ancell <robert ancell canonical com>
Date:   Thu Sep 28 13:59:23 2017 -0400

    daemon: Move root check before settings are loaded
    
    The root check doesn't require settings and may be the cause of settings
    failing to load.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=788301

 daemon/main.c |   14 +++++++-------
 1 files changed, 7 insertions(+), 7 deletions(-)
---
diff --git a/daemon/main.c b/daemon/main.c
index d45fab9..468f463 100644
--- a/daemon/main.c
+++ b/daemon/main.c
@@ -348,6 +348,13 @@ main (int    argc,
                 exit (1);
         }
 
+        /* XDM compliant error message */
+        if (getuid () != 0) {
+                /* make sure the pid file doesn't get wiped */
+                g_warning (_("Only the root user can run GDM"));
+                exit (-1);
+        }
+
         if (fatal_warnings) {
                 GLogLevelFlags fatal_mask;
 
@@ -370,13 +377,6 @@ main (int    argc,
 
         gdm_daemon_ensure_dirs (gdm_uid, gdm_gid);
 
-        /* XDM compliant error message */
-        if (getuid () != 0) {
-                /* make sure the pid file doesn't get wiped */
-                g_warning (_("Only the root user can run GDM"));
-                exit (-1);
-        }
-
         /* Connect to the bus, own the name and start the manager */
         bus_reconnect ();