[glom] Fix typo in a comment.

[Murray Cumming <murrayc src gnome org>]

commit 0b178756479a2d0147020e1c17f651671518c5db
Author: Murray Cumming <murrayc murrayc com>
Date:   Fri Mar 6 09:54:08 2015 +0100

    Fix typo in a comment.

 glom/utility_widgets/combo_textglade.h |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/glom/utility_widgets/combo_textglade.h b/glom/utility_widgets/combo_textglade.h
index 3931cf2..9c979b6 100644
--- a/glom/utility_widgets/combo_textglade.h
+++ b/glom/utility_widgets/combo_textglade.h
@@ -29,7 +29,7 @@
 namespace Glom
 {
 
-/** This class just derives from Gtk::ComboBoxText and provides a constuctor suitable for libglade's 
get_widget_derived() template.
+/** This class just derives from Gtk::ComboBoxText and provides a constructor suitable for libglade's 
get_widget_derived() template.
  * so we can use its set_first_active() method.
  */
 class Combo_TextGlade : public Gtk::ComboBoxText