Add another NEWS entry for a fix already in 2.5c1
diff --git a/Misc/NEWS b/Misc/NEWS
index 92c084b..9ebe288 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -196,6 +196,8 @@
 Extension Modules
 -----------------
 
+- Ignore data that arrives before the opening start tag in C etree.
+
 - Patch #1511317: don't crash on invalid hostname (alias) info.
 
 - Patch #1535500: fix segfault in BZ2File.writelines and make sure it