[glibmm] ChangeLog: Correct a branch name

[Murray Cumming <murrayc src gnome org>]

commit 65cbdaae783a5bdf37f0f2c3c6f8501de00894f7
Author: Murray Cumming <murrayc murrayc com>
Date:   Mon Apr 1 23:30:58 2013 +0200

    ChangeLog: Correct a branch name

 ChangeLog |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/ChangeLog b/ChangeLog
index b3ad223..d9db708 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,4 +1,4 @@
-This is the master branch for glibmm 3.7/8.
+This is the master branch for glibmm 2.37/8.
 See also the glibmm-2-36 branch.
 
 2013-03-31  José Alburquerque  <jaalburquerque gmail com>