update ChangeLog
diff --git a/ChangeLog b/ChangeLog
index 70c000a..25facc5 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -5,7 +5,7 @@
 
 Bugfix
    * Fix compilation error on C++, because of a variable named new.
-     Found and fixed by Hirotaka Niisato in #1783 
+     Found and fixed by Hirotaka Niisato in #1783.
 
 = mbed TLS 2.11.0 branch released 2018-06-18