Fix arginfo for tidy::__construct()

This was split out of PR #3439

Previously, the arginfo was wrong for these methods.
getNumberOfRequiredParameters() was 4 for that method.
Compare with http://php.net/manual/en/tidy.construct.php)

This fixes the arginfo added to PHP 7.3 in 97353cd

Author: TysonAndre

NEWS

@@ -30,6 +30,9 @@ PHP                                                                        NEWS
   . Fixed bug #76713 (Segmentation fault caused by property corruption).
     (Laruence)
 
+- Tidy:
+  . Fixed arginfo for tidy::__construct(). (Tyson Andre)
+
 - zlib:
   . Fixed bug #65988 (Zlib version check fails when an include/zlib/ style dir
     is passed to the --with-zlib configure option). (Jay Bonci)

ext/tidy/tidy.c

@@ -396,7 +396,7 @@ ZEND_BEGIN_ARG_INFO_EX(arginfo_tidy_get_body, 0, 0, 1)
 	ZEND_ARG_INFO(0, tidy)
 ZEND_END_ARG_INFO()
 
-ZEND_BEGIN_ARG_INFO(arginfo_tidy_construct, 0)
+ZEND_BEGIN_ARG_INFO_EX(arginfo_tidy_construct, 0, 0, 0)
     ZEND_ARG_INFO(0, filename)
     ZEND_ARG_INFO(0, config_file)
     ZEND_ARG_INFO(0, encoding)