[libpng] Note in CHANGES that Makefile.in and configure were reverted

to libpng-1.6.0beta05 versions.
diff --git a/ANNOUNCE b/ANNOUNCE
index 9c77d96..f5eb71d 100644
--- a/ANNOUNCE
+++ b/ANNOUNCE
@@ -107,7 +107,7 @@
 Version 1.6.0beta05 [January 15, 2012]
   Updated manual with description of the simplified API (copied from png.h)
   Fix bug in pngerror.c: some long warnings were being improperly truncated
-    (bug introduced in libpng-1.5.3beta05).
+    (CVE-2011-3464, bug introduced in libpng-1.5.3beta05).
 
 Version 1.6.0beta06 [January 24, 2012]
   Added palette support to the simplified APIs. This commit
@@ -168,6 +168,7 @@
     not in a libpng directory extracted from a tar distribution.
 
 Version 1.6.0beta09 [February 1, 2012]
+  Reverted the prebuilt configure files to libpng-1.6.0beta05.
 
 Send comments/corrections/commendations to png-mng-implement at lists.sf.net
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diff --git a/CHANGES b/CHANGES
index 9f63b63..f025c9d 100644
--- a/CHANGES
+++ b/CHANGES
@@ -3858,7 +3858,7 @@
 Version 1.6.0beta05 [January 15, 2012]
   Updated manual with description of the simplified API (copied from png.h)
   Fix bug in pngerror.c: some long warnings were being improperly truncated
-    (bug introduced in libpng-1.5.3beta05).
+    (CVE-2011-3464, bug introduced in libpng-1.5.3beta05).
 
 Version 1.6.0beta06 [January 24, 2012]
   Added palette support to the simplified APIs. This commit
@@ -3919,6 +3919,7 @@
     not in a libpng directory extracted from a tar distribution.
 
 Version 1.6.0beta09 [February 1, 2012]
+  Reverted the prebuilt configure files to libpng-1.6.0beta05.
 
 Send comments/corrections/commendations to png-mng-implement at lists.sf.net
 (subscription required; visit