[gtkmm] Fix the ChangeLog

[Murray Cumming <murrayc src gnome org>]

commit a57db9c72cec40fbb5732149e56277ffaba3814e
Author: Murray Cumming <murrayc murrayc com>
Date:   Sat Jan 15 00:02:32 2011 +0100

    Fix the ChangeLog

 ChangeLog |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/ChangeLog b/ChangeLog
index dff9361..c51df34 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,6 +1,6 @@
 2011-01-14  Murray Cumming  <murrayc murrayc com>
 
-	ComboBoxText: Documentation: Correct the overview
+	ComboBox: Documentation: Correct the overview
 
 	* gtk/src/combobox.hg: Update the overview comment now that the documentation 
 	for the C API has been improved. This removes the mention of OptionMenu,