Update ChangeLog
Update ChangeLog with a less ambigous description.
diff --git a/ChangeLog b/ChangeLog
index c28f806..380b289 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -4,8 +4,8 @@
Bugfix
* Add ecc extensions only if an ecc based ciphersuite is used.
- Affects interoperability with BouncyCastle and other peers.
- Raised by milenamil in #1157.
+ This improves compliance to RFC 4492, and as a result, solves
+ interoperability issues with BouncyCastle. Raised by milenamil in #1157.
= mbed TLS 2.11.0 branch released 2018-06-18