Update ChangeLog style
Add dot at end of change in ChangeLog
@@ -4,7 +4,7 @@ mbed TLS ChangeLog (Sorted per branch, date)
Features
* Allow comments in test data files.
- * Add support for public keys encoded in PKCS#1 format
+ * Add support for public keys encoded in PKCS#1 format.
Bugfix
* Fix memory leak in mbedtls_ssl_set_hostname() when called multiple times.
