[gdm] daemon: Fix session setting code

[Ray Strode <halfline src gnome org>]

commit e476672cf4b53bfdb047e869d54ec4082121586a
Author: Jasper St. Pierre <jstpierre mecheye net>
Date:   Fri Aug 17 00:12:17 2012 -0400

    daemon: Fix session setting code
    
    Passing ['--session=', 'foo'] won't be picked up by GOption. Pass
    [--session', 'foo'] instead.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=678057

 daemon/gdm-simple-slave.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/daemon/gdm-simple-slave.c b/daemon/gdm-simple-slave.c
index 137d238..0407387 100644
--- a/daemon/gdm-simple-slave.c
+++ b/daemon/gdm-simple-slave.c
@@ -976,7 +976,7 @@ create_environment (const char *session_id,
         }
 
         if (session_id != NULL) {
-                g_ptr_array_add (args, " --session=");
+                g_ptr_array_add (args, " --session");
                 g_ptr_array_add (args, (char *) session_id);
         }