[mutter] events: Fix a typo preventing the None detection from working properly

[Jasper St. Pierre <jstpierre src gnome org>]

commit be85ead2f8211593199b4fc7285f066145dd8208
Author: Jasper St. Pierre <jstpierre mecheye net>
Date:   Tue Sep 16 19:53:05 2014 -0600

    events: Fix a typo preventing the None detection from working properly
    
    XINotifyDetailNone is a value for detail, not for mode.

 src/x11/events.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/x11/events.c b/src/x11/events.c
index cfb1e44..d26b2a4 100644
--- a/src/x11/events.c
+++ b/src/x11/events.c
@@ -884,7 +884,7 @@ handle_input_xevent (MetaDisplay *display,
             break;
 
           if (enter_event->evtype == XI_FocusIn &&
-              enter_event->mode == XINotifyDetailNone)
+              enter_event->detail == XINotifyDetailNone)
             {
               meta_topic (META_DEBUG_FOCUS,
                           "Focus got set to None, probably due to "