[gtkmm] Corrected the ChangeLog

[Murray Cumming <murrayc src gnome org>]

commit 1b0e2692f74a0c77c39b2b5b42855fd71da0cf87
Author: Murray Cumming <murrayc murrayc com>
Date:   Wed Jun 29 09:43:49 2011 +0200

    Corrected the ChangeLog

 ChangeLog |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/ChangeLog b/ChangeLog
index db1a602..029fbd6 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -6,7 +6,7 @@
 
 2011-06-29  Murray Cumming  <murrayc murrayc com>
 
-	ComboBoxText: Constructor: Set entry-text-column and d-column.
+	ComboBoxText: Constructor: Set entry-text-column and id-column.
 
 	* gtk/src/comboboxtext.ccg: gtk_combo_box_text_new() does this, 
 	instead of setting them in some construct or init function, so we need to