[glibmm] Fix tiny typo in commit

[Murray Cumming <murrayc src gnome org>]

commit b4b5449be4c9acd350c376c7795c988e7f665ff6
Author: Murray Cumming <murrayc murrayc com>
Date:   Tue Mar 4 09:34:31 2014 +0100

    Fix tiny typo in commit

 glib/glibmm/interface.cc |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/glib/glibmm/interface.cc b/glib/glibmm/interface.cc
index 511f541..19554ca 100644
--- a/glib/glibmm/interface.cc
+++ b/glib/glibmm/interface.cc
@@ -30,7 +30,7 @@ namespace Glib
 
 void Interface_Class::add_interface(GType instance_type) const
 {
-  //This check is distabled, because it checks whether any of the types's bases implement the interface, not 
just the specific type.
+  //This check is disabled, because it checks whether any of the types's bases implement the interface, not 
just the specific type.
   //if( !g_type_is_a(instance_type, gtype_) ) //For convenience, don't complain about calling this twice.
   //{
     const GInterfaceInfo interface_info =