Use {0} to initialize instead of {NULL}

Author: Girgias

ext/phar/func_interceptors.c

@@ -1100,7 +1100,7 @@ static struct _phar_orig_functions {
 	zif_handler orig_lstat;
 	zif_handler orig_readfile;
 	zif_handler orig_stat;
-} phar_orig_functions = {NULL};
+} phar_orig_functions = {0};
 
 void phar_save_orig_functions(void) /* {{{ */
 {

ext/standard/html.c

@@ -1026,7 +1026,7 @@ static const entity_ht *unescape_inverse_map(int all, int flags)
  * unicode code points */
 static entity_table_opt determine_entity_table(int all, int doctype)
 {
-	entity_table_opt retval = {NULL};
+	entity_table_opt retval = {0};
 
 	assert(!(doctype == ENT_HTML_DOC_XML1 && all));