[mutter] monitor-manager: Fix private header guard

[Jonas Ådahl <jadahl src gnome org>]

commit 7eac28189b191bb89a22db69a99431e22f55ea6f
Author: Jonas Ådahl <jadahl gmail com>
Date:   Thu Dec 8 12:17:20 2016 +0800

    monitor-manager: Fix private header guard
    
    https://bugzilla.gnome.org/show_bug.cgi?id=777732

 src/backends/meta-monitor-manager-private.h |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/src/backends/meta-monitor-manager-private.h b/src/backends/meta-monitor-manager-private.h
index ecff72d..05c63a3 100644
--- a/src/backends/meta-monitor-manager-private.h
+++ b/src/backends/meta-monitor-manager-private.h
@@ -32,8 +32,8 @@
  * along with this program; if not, see <http://www.gnu.org/licenses/>.
  */
 
-#ifndef META_MONITOR_PRIVATE_H
-#define META_MONITOR_PRIVATE_H
+#ifndef META_MONITOR_MANAGER_PRIVATE_H
+#define META_MONITOR_MANAGER_PRIVATE_H
 
 #include <cogl/cogl.h>
 #include <libgnome-desktop/gnome-pnp-ids.h>
@@ -445,4 +445,4 @@ meta_monitor_transform_is_rotated (MetaMonitorTransform transform)
   return (transform % 2);
 }
 
-#endif
+#endif /* META_MONITOR_MANAGER_PRIVATE_H */