[glib] docs: Use generic marshallers in GObject how-to examples

[Philip Withnall <pwithnall src gnome org>]

commit 42baaa88cd20adcce8767fb124682b1b3bd8b0ec
Author: Philip Withnall <philip withnall collabora co uk>
Date:   Fri Feb 20 13:16:08 2015 +0000

    docs: Use generic marshallers in GObject how-to examples
    
    They’re the new vogue for handling signals.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=744060

 docs/reference/gobject/tut_howto.xml |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/docs/reference/gobject/tut_howto.xml b/docs/reference/gobject/tut_howto.xml
index f93febd..2bb1264 100644
--- a/docs/reference/gobject/tut_howto.xml
+++ b/docs/reference/gobject/tut_howto.xml
@@ -1364,12 +1364,12 @@ maman_file_write (file, buffer, strlen (buffer));
 <informalexample><programlisting>
 file_signals[CHANGED] = 
   g_signal_newv ("changed",
-                 G_TYPE_FROM_CLASS (gobject_class),
+                 G_TYPE_FROM_CLASS (object_class),
                  G_SIGNAL_RUN_LAST | G_SIGNAL_NO_RECURSE | G_SIGNAL_NO_HOOKS,
                  NULL /* closure */,
                  NULL /* accumulator */,
                  NULL /* accumulator data */,
-                 g_cclosure_marshal_VOID__VOID,
+                 g_cclosure_marshal_generic,
                  G_TYPE_NONE /* return_type */,
                  0     /* n_params */,
                  NULL  /* param_types */);