[gtkmm] class_gtkobject.m4: Fix GtkObject→GObject for wrap

[Daniel Boles <dboles src gnome org>]

commit b6ee4bbd4e1c80cb81a39f01131f91164bb69525
Author: Daniel Boles <dboles src gnome org>
Date:   Mon Oct 9 23:01:15 2017 +0100

    class_gtkobject.m4: Fix GtkObject→GObject for wrap
    
    GtkObject was moved down to the GLib level, as GObject, 2 versions ago.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=788587

 tools/m4/class_gtkobject.m4 |    6 ++----
 1 files changed, 2 insertions(+), 4 deletions(-)
---
diff --git a/tools/m4/class_gtkobject.m4 b/tools/m4/class_gtkobject.m4
index f2f82bb..7c0897c 100644
--- a/tools/m4/class_gtkobject.m4
+++ b/tools/m4/class_gtkobject.m4
@@ -272,10 +272,10 @@ ifdef(`__BOOL_DYNAMIC_GTYPE_REGISTRATION__',`
   static GType get_base_type() G_GNUC_CONST;
 #endif
 
-  ///Provides access to the underlying C GtkObject.
+  /// Provides access to the underlying C GObject.
   __CNAME__*       gobj()       { return reinterpret_cast<__CNAME__*>(gobject_); }
 
-  ///Provides access to the underlying C GtkObject.
+  /// Provides access to the underlying C GObject.
   const __CNAME__* gobj() const { return reinterpret_cast<__CNAME__*>(gobject_); }
 
 private:
@@ -285,5 +285,3 @@ public:
 _H_VFUNCS_AND_SIGNALS()
 
 ')
-
-