Update NEWS

Author: laruence

NEWS

@@ -3,6 +3,8 @@ PHP                                                                        NEWS
 ?? ??? 2017, PHP 7.1.3
 
 - Core:
+  . Fixed bug #73989 (PHP 7.1 Segfaults within Symfony test suite).
+    (Dmitry, Laruence)
   . Fixed bug #74084 (Out of bound read - zend_mm_alloc_small). (Laruence)
   . Fixed bug #73807 (Performance problem with processing large post request).
     (Nikita)