Merge branch 'PHP-7.4'

* PHP-7.4:
  Call zend_unregister_ini_entries() when unload extension loaded through dl() without MSHUTDOWN callback. Extensions with MSHUTDOWN should use UNREGISTER_INI_ENTRIES().

diff --cc Zend/zend_API.c
Simple merge

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