[clutter] evdev: Fix missing ClutterEventSource member

[Emmanuele Bassi <ebassi src gnome org>]

commit 78a7a60b8969aa14a89ce54132db1f6e44b4dca0
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Tue Dec 18 00:45:00 2012 +0000

    evdev: Fix missing ClutterEventSource member
    
    https://bugzilla.gnome.org/show_bug.cgi?id=686692

 clutter/evdev/clutter-device-manager-evdev.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/clutter/evdev/clutter-device-manager-evdev.c b/clutter/evdev/clutter-device-manager-evdev.c
index edf455d..7afcc0a 100644
--- a/clutter/evdev/clutter-device-manager-evdev.c
+++ b/clutter/evdev/clutter-device-manager-evdev.c
@@ -111,6 +111,7 @@ struct _ClutterEventSource
   GPollFD event_poll_fd;              /* file descriptor of the /dev node */
   struct xkb_state *xkb;              /* XKB state object */
   gint x, y;                          /* last x, y position for pointers */
+  guint32 modifier_state;             /* key modifiers */
 };
 
 static gboolean
@@ -289,7 +290,7 @@ notify_button (ClutterEventSource *source,
   else
     event = clutter_event_new (CLUTTER_BUTTON_RELEASE);
 
-  /* Update the modfiers */
+  /* Update the modifiers */
   if (state)
     source->modifier_state |= maskmap[button - BTN_LEFT];
   else