[gnome-devel-docs] Fixed missing closing parenthesis

[Marek Černocký <mcernocky src gnome org>]

commit 23fa86a221b2b9f5578e5baba6e416b00e8ead63
Author: Marek Černocký <marek manet cz>
Date:   Mon May 11 23:16:45 2015 +0200

    Fixed missing closing parenthesis

 platform-demos/C/samples/combobox_multicolumn.vala |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/platform-demos/C/samples/combobox_multicolumn.vala 
b/platform-demos/C/samples/combobox_multicolumn.vala
index 8b58532..8f45059 100644
--- a/platform-demos/C/samples/combobox_multicolumn.vala
+++ b/platform-demos/C/samples/combobox_multicolumn.vala
@@ -49,7 +49,7 @@ class MyWindow : Gtk.ApplicationWindow {
                combobox.set_active (0);
 
                /* Connect the 'changed' signal of the combobox
-                * to the signal handler (aka. callback function.
+                * to the signal handler (aka. callback function).
                 */
                combobox.changed.connect (this.item_changed);