Merge branch 'PHP-7.3' into PHP-7.4

* PHP-7.3:
  Add NEWS entryc [ci skip]

diff --cc NEWS
index 72700350895588f446442ba9d5ea71ea177f5683,3bcafb8cd89fb94366ed5ea8eaa1d99cf7c4ab3f..6bb51f88a1ad392725cb1e2655ad0d7e5e854685
--- 1/NEWS
--- 2/NEWS
+++ b/NEWS
@@@ -1,10 -1,12 +1,13 @@@
  PHP                                                                        NEWS
  |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 -?? ??? ????, PHP 7.3.18
 +
 +?? ??? ????, PHP 7.4.6
  
+ - MBString:
+   . Fixed bug #79441 (Segfault in mb_chr() if internal encoding is unsupported).
+     (Girgias)
  
 -16 Apr 2020, PHP 7.3.17
 +?? ??? ????, PHP 7.4.5
  
  - Core:
    . Fixed bug #79364 (When copy empty array, next key is unspecified). (cmb)