[gtkmm-documentation] Fixed typo

[Daniel Mustieles GarcÃa <dmustieles src gnome org>]

commit c4c69703756e89d348df1313b409d16ddb197e6d
Author: Daniel Mustieles <daniel mustieles gmail com>
Date:   Sun Mar 25 16:35:37 2012 +0200

    Fixed typo

 docs/tutorial/C/gtkmm-tutorial-in.xml |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/docs/tutorial/C/gtkmm-tutorial-in.xml b/docs/tutorial/C/gtkmm-tutorial-in.xml
index 7410442..2987846 100644
--- a/docs/tutorial/C/gtkmm-tutorial-in.xml
+++ b/docs/tutorial/C/gtkmm-tutorial-in.xml
@@ -2915,7 +2915,7 @@ This example is much like the <classname>TreeStore</classname> example, but has
 receive drag-and-dropped rows. It uses a derived
 <classname>Gtk::TreeStore</classname> which overrides the virtual functions as
 described in the <link linkend="sec-treeview-draganddrop">TreeView Drag and
-    Drop</link> section..
+    Drop</link> section.
 </para>
 
 <figure id="figure-treeview-draganddrop">