Merge branch 'PHP-7.3' into PHP-7.4

* PHP-7.3:
  Fix #79615: Wrong GIF header written in GD GIFEncode

diff --cc NEWS
index 29d1a22a4ea23bd565d93b3d4908326a6df9823b,f9ae00e8e4fa6c2617fd01dabf1217ccfe0b92e9..eb88651544e523293f5f65bd730b484943b73ff1
--- 1/NEWS
--- 2/NEWS
+++ b/NEWS
@@@ -1,26 -1,21 +1,29 @@@
  PHP                                                                        NEWS
  |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 -?? ??? ????, PHP 7.3.19
 +?? ??? ????, PHP 7.4.7
  
  - Core:
 +  . Fixed bug #79599 (coredump in set_error_handler). (Laruence)
    . Fixed bug #79566 (Private SHM is not private on Windows). (cmb)
    . Fixed bug #79489 (.user.ini does not inherit). (cmb)
 +  . Fixed bug #79600 (Regression in 7.4.6 when yielding an array based
 +    generator). (Nikita)
 +
 +- FFI:
 +  . Fixed bug #79571 (FFI: var_dumping unions may segfault). (cmb)
  
 -- MySQLnd:
 -  . Fixed bug #79596 (MySQL FLOAT truncates to int some locales). (cmb)
 -
+ - GD:
+   . Fixed bug #79615 (Wrong GIF header written in GD GIFEncode). (sageptr, cmb)
+ 
  - Opcache:
 -  . Fixed bug #79535 (PHP crashes with specific opcache.optimization_level).
 -    (Nikita)
    . Fixed bug #79588 (Boolean opcache settings ignore on/off values). (cmb)
 +  . Fixed bug #79548 (Preloading segfault with inherited method using static
 +    variable). (Nikita)
 +  . Fixed bug #79603 (RTD collision with opcache). (Nikita)
 +
 +- SimpleXML:
 +  . Fixed bug #79528 (Different object of the same xml between 7.4.5 and
 +    7.4.4). (cmb)
  
  - Standard:
    . Fixed bug #79561 (dns_get_record() fails with DNS_ALL). (cmb)

diff --cc ext/gd/libgd/gd_gif_out.c
Simple merge