[mutter] monitor-config-manager: Handle comparing different sized config keys

[Jonas Ådahl <jadahl src gnome org>]

commit 3f107da4798eea69c966aa94897f70b076414440
Author: Jonas Ådahl <jadahl gmail com>
Date:   Thu Apr 13 13:02:18 2017 +0800

    monitor-config-manager: Handle comparing different sized config keys
    
    The guard for handling size differences between keys were broken, it
    only checked if the key passed by the second argument ended up being
    shorter.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=777732

 src/backends/meta-monitor-config-manager.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/backends/meta-monitor-config-manager.c b/src/backends/meta-monitor-config-manager.c
index 14023e4..5f80feb 100644
--- a/src/backends/meta-monitor-config-manager.c
+++ b/src/backends/meta-monitor-config-manager.c
@@ -827,7 +827,7 @@ meta_monitors_config_key_equal (gconstpointer data_a,
         return FALSE;
     }
 
-  if (l_b || l_b)
+  if (l_a || l_b)
     return FALSE;
 
   return TRUE;