[libpng16] Added clang attribute support (Cosmin).

CHANGES

diff --git a/CHANGES b/CHANGES
index f7ae38d..8c3a815 100644
--- a/CHANGES
+++ b/CHANGES
@@ -4788,8 +4788,9 @@
 Version 1.6.9beta03 [January 10, 2014]
   Removed potentially misleading warning from png_check_IHDR().
 
-Version 1.6.9beta04 [January 12, 2014]
-  Updated scripts/makefile.* to use CPPFLAGS (Cosmin)
+Version 1.6.9beta04 [January 14, 2014]
+  Updated scripts/makefile.* to use CPPFLAGS (Cosmin).
+  Added clang attribute support (Cosmin).
 
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